2522520 has 288 divisors, whose sum is σ = 11203920. Its totient is φ = 483840.

The previous prime is 2522503. The next prime is 2522543. The reversal of 2522520 is 252252.

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 = 2522493 and 2522502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 194034 + ... + 194046.

2^2522520 is an apocalyptic number.

2522520 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 2522520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5601960).

2522520 is an abundant number, since it is smaller than the sum of its proper divisors (8681400).

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

2522520 is a wasteful number, since it uses less digits than its factorization.

2522520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 41 counting only the distinct ones).

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

The square root of 2522520 is about 1588.2443136999. The cubic root of 2522520 is about 136.1271878214.

Adding to 2522520 its reverse (252252), we get a palindrome (2774772).

It can be divided in two parts, 252 and 2520, that added together give a palindrome (2772).

The spelling of 2522520 in words is "two million, five hundred twenty-two thousand, five hundred twenty".