25562520 has 64 divisors (see below), whose sum is σ = 85212000. Its totient is φ = 6816384.

The previous prime is 25562513. The next prime is 25562527. The reversal of 25562520 is 2526552.

It is an interprime number because it is at equal distance from previous prime (25562513) and next prime (25562527).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25562527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10755 + ... + 12914.

Almost surely, 2^25562520 is an apocalyptic number.

25562520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25562520 is an abundant number, since it is smaller than the sum of its proper divisors (59649480).

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

25562520 is a wasteful number, since it uses less digits than its factorization.

25562520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23689 (or 23679 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 25562520 is about 5055.9390819115. The cubic root of 25562520 is about 294.5786189119.

The spelling of 25562520 in words is "twenty-five million, five hundred sixty-two thousand, five hundred twenty".