25000057 has 16 divisors (see below), whose sum is σ = 26926848. Its totient is φ = 23158080.

The previous prime is 25000033. The next prime is 25000069. The reversal of 25000057 is 75000052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25000057 - 2⁷ = 24999929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24999998 and 25000043.

It is not an unprimeable number, because it can be changed into a prime (25001057) 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, 144423 + ... + 144595.

It is an arithmetic number, because the mean of its divisors is an integer number (1682928).

Almost surely, 2^25000057 is an apocalyptic number.

It is an amenable number.

25000057 is a deficient number, since it is larger than the sum of its proper divisors (1926791).

25000057 is a wasteful number, since it uses less digits than its factorization.

25000057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 25000057 is about 5000.0056999968. The cubic root of 25000057 is about 292.4019960465.

The spelling of 25000057 in words is "twenty-five million, fifty-seven", and thus it is an aban number and an uban number.