25401057 has 8 divisors (see below), whose sum is σ = 36947040. Its totient is φ = 15394560.

The previous prime is 25401053. The next prime is 25401091. The reversal of 25401057 is 75010452.

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

It is not a de Polignac number, because 25401057 - 2² = 25401053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25401053) 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, 384832 + ... + 384897.

It is an arithmetic number, because the mean of its divisors is an integer number (4618380).

Almost surely, 2^25401057 is an apocalyptic number.

It is an amenable number.

25401057 is a deficient number, since it is larger than the sum of its proper divisors (11545983).

25401057 is a wasteful number, since it uses less digits than its factorization.

25401057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769743.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 25401057 is about 5039.9461306645. The cubic root of 25401057 is about 293.9570833741.

The spelling of 25401057 in words is "twenty-five million, four hundred one thousand, fifty-seven".