25065720 has 64 divisors (see below), whose sum is σ = 83556000. Its totient is φ = 6683904.

The previous prime is 25065709. The next prime is 25065727. The reversal of 25065720 is 2756052.

25065720 is a `hidden beast` number, since 2 + 5 + 0 + 657 + 2 + 0 = 666.

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 (25065727) 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, 10525 + ... + 12684.

Almost surely, 2^25065720 is an apocalyptic number.

25065720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25065720 is an abundant number, since it is smaller than the sum of its proper divisors (58490280).

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

25065720 is a wasteful number, since it uses less digits than its factorization.

25065720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23229 (or 23219 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 25065720 is about 5006.5676865493. The cubic root of 25065720 is about 292.6577715575.

The spelling of 25065720 in words is "twenty-five million, sixty-five thousand, seven hundred twenty".