25796920 has 16 divisors (see below), whose sum is σ = 58043160. Its totient is φ = 10318752.

The previous prime is 25796899. The next prime is 25796923. The reversal of 25796920 is 2969752.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 644923 = 25796920 / (2 + 5 + 7 + 9 + 6 + 9 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25796923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322422 + ... + 322501.

Almost surely, 2^25796920 is an apocalyptic number.

25796920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25796920 is an abundant number, since it is smaller than the sum of its proper divisors (32246240).

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

25796920 is a wasteful number, since it uses less digits than its factorization.

25796920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644934 (or 644930 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 25796920 is about 5079.0668434270. The cubic root of 25796920 is about 295.4762774619.

The spelling of 25796920 in words is "twenty-five million, seven hundred ninety-six thousand, nine hundred twenty".