25663057 has 16 divisors (see below), whose sum is σ = 30562560. Its totient is φ = 21083328.

The previous prime is 25663037. The next prime is 25663073. The reversal of 25663057 is 75036652.

It is not a de Polignac number, because 25663057 - 2⁷ = 25662929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25663037) 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, 33523 + ... + 34279.

It is an arithmetic number, because the mean of its divisors is an integer number (1910160).

Almost surely, 2^25663057 is an apocalyptic number.

It is an amenable number.

25663057 is a deficient number, since it is larger than the sum of its proper divisors (4899503).

25663057 is a wasteful number, since it uses less digits than its factorization.

25663057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 25663057 is about 5065.8717907188. The cubic root of 25663057 is about 294.9643047876.

The spelling of 25663057 in words is "twenty-five million, six hundred sixty-three thousand, fifty-seven".