25258720 has 24 divisors (see below), whose sum is σ = 59674104. Its totient is φ = 10103424.

The previous prime is 25258711. The next prime is 25258757. The reversal of 25258720 is 2785252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78774 + ... + 79093.

It is an arithmetic number, because the mean of its divisors is an integer number (2486421).

Almost surely, 2^25258720 is an apocalyptic number.

25258720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25258720 is an abundant number, since it is smaller than the sum of its proper divisors (34415384).

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

25258720 is a wasteful number, since it uses less digits than its factorization.

25258720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157882 (or 157874 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 25258720 is about 5025.8054080913. The cubic root of 25258720 is about 293.4069833430.

The spelling of 25258720 in words is "twenty-five million, two hundred fifty-eight thousand, seven hundred twenty".