25194057 has 32 divisors (see below), whose sum is σ = 40734720. Its totient is φ = 13530240.

The previous prime is 25194053. The next prime is 25194061. The reversal of 25194057 is 75049152.

It is an interprime number because it is at equal distance from previous prime (25194053) and next prime (25194061).

It is not a de Polignac number, because 25194057 - 2² = 25194053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25194053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92832 + ... + 93102.

It is an arithmetic number, because the mean of its divisors is an integer number (1272960).

Almost surely, 2^25194057 is an apocalyptic number.

It is an amenable number.

25194057 is a deficient number, since it is larger than the sum of its proper divisors (15540663).

25194057 is a wasteful number, since it uses less digits than its factorization.

25194057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 25194057 is about 5019.3681873319. The cubic root of 25194057 is about 293.1563928020.

The spelling of 25194057 in words is "twenty-five million, one hundred ninety-four thousand, fifty-seven".