25212860025 has 24 divisors (see below), whose sum is σ = 41689816800. Its totient is φ = 13445389440.

The previous prime is 25212859937. The next prime is 25212860051. The reversal of 25212860025 is 52006821252.

It is a happy number.

It is not a de Polignac number, because 25212860025 - 2⁸ = 25212859769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1287709 + ... + 1307141.

It is an arithmetic number, because the mean of its divisors is an integer number (1737075700).

Almost surely, 2^25212860025 is an apocalyptic number.

25212860025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25212860025 is a deficient number, since it is larger than the sum of its proper divisors (16476956775).

25212860025 is a wasteful number, since it uses less digits than its factorization.

25212860025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36745 (or 36740 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 25212860025 in words is "twenty-five billion, two hundred twelve million, eight hundred sixty thousand, twenty-five".