25222160 has 40 divisors (see below), whose sum is σ = 60233496. Its totient is φ = 9815040.

The previous prime is 25222159. The next prime is 25222181. The reversal of 25222160 is 6122252.

It can be written as a sum of positive squares in 4 ways, for example, as 6697744 + 18524416 = 2588^2 + 4304^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301 + ... + 7220.

Almost surely, 2^25222160 is an apocalyptic number.

25222160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25222160 is an abundant number, since it is smaller than the sum of its proper divisors (35011336).

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

25222160 is a wasteful number, since it uses less digits than its factorization.

25222160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8571 (or 8565 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25222160 is about 5022.1668630184. The cubic root of 25222160 is about 293.2653538522.

The spelling of 25222160 in words is "twenty-five million, two hundred twenty-two thousand, one hundred sixty".