25707057 has 16 divisors (see below), whose sum is σ = 36188160. Its totient is φ = 16187472.

The previous prime is 25707053. The next prime is 25707061. The reversal of 25707057 is 75070752.

It is an interprime number because it is at equal distance from previous prime (25707053) and next prime (25707061).

It is not a de Polignac number, because 25707057 - 2² = 25707053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25707053) 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, 34228 + ... + 34970.

It is an arithmetic number, because the mean of its divisors is an integer number (2261760).

Almost surely, 2^25707057 is an apocalyptic number.

It is an amenable number.

25707057 is a deficient number, since it is larger than the sum of its proper divisors (10481103).

25707057 is a wasteful number, since it uses less digits than its factorization.

25707057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372.

The product of its (nonzero) digits is 17150, while the sum is 33.

The square root of 25707057 is about 5070.2127174311. The cubic root of 25707057 is about 295.1327832763.

The spelling of 25707057 in words is "twenty-five million, seven hundred seven thousand, fifty-seven".