25072457 has 8 divisors (see below), whose sum is σ = 26690400. Its totient is φ = 23484384.

The previous prime is 25072451. The next prime is 25072469. The reversal of 25072457 is 75427052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25072457 - 2⁶ = 25072393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25072451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5723 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (3336300).

Almost surely, 2^25072457 is an apocalyptic number.

It is an amenable number.

25072457 is a deficient number, since it is larger than the sum of its proper divisors (1617943).

25072457 is a wasteful number, since it uses less digits than its factorization.

25072457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14935.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 25072457 is about 5007.2404575774. The cubic root of 25072457 is about 292.6839887550.

The spelling of 25072457 in words is "twenty-five million, seventy-two thousand, four hundred fifty-seven".