2225520 has 120 divisors (see below), whose sum is σ = 8182512. Its totient is φ = 537600.

The previous prime is 2225501. The next prime is 2225533. The reversal of 2225520 is 255222.

2225520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2225493 and 2225502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7780 + ... + 8060.

2^2225520 is an apocalyptic number.

2225520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2225520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4091256).

2225520 is an abundant number, since it is smaller than the sum of its proper divisors (5956992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2225520 is a wasteful number, since it uses less digits than its factorization.

2225520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2225520 is about 1491.8176832308. The cubic root of 2225520 is about 130.5601079512.

It can be divided in two parts, 2 and 225520, that added together give a palindrome (225522).

The spelling of 2225520 in words is "two million, two hundred twenty-five thousand, five hundred twenty".