25657045 has 8 divisors (see below), whose sum is σ = 30973824. Its totient is φ = 20402064.

The previous prime is 25657039. The next prime is 25657061. The reversal of 25657045 is 54075652.

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 25657045 - 2⁵ = 25657013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25657045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14529 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (3871728).

Almost surely, 2^25657045 is an apocalyptic number.

It is an amenable number.

25657045 is a deficient number, since it is larger than the sum of its proper divisors (5316779).

25657045 is a wasteful number, since it uses less digits than its factorization.

25657045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30899.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 25657045 is about 5065.2783733967. The cubic root of 25657045 is about 294.9412695494.

The spelling of 25657045 in words is "twenty-five million, six hundred fifty-seven thousand, forty-five".