25302775025 has 48 divisors (see below), whose sum is σ = 34639532928. Its totient is φ = 18181440000.

The previous prime is 25302775021. The next prime is 25302775073. The reversal of 25302775025 is 52057720352.

It is not a de Polignac number, because 25302775025 - 2² = 25302775021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25302775025.

It is not an unprimeable number, because it can be changed into a prime (25302775021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23802644 + ... + 23803706.

It is an arithmetic number, because the mean of its divisors is an integer number (721656936).

Almost surely, 2^25302775025 is an apocalyptic number.

25302775025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25302775025 is a deficient number, since it is larger than the sum of its proper divisors (9336757903).

25302775025 is a wasteful number, since it uses less digits than its factorization.

25302775025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 38.

The spelling of 25302775025 in words is "twenty-five billion, three hundred two million, seven hundred seventy-five thousand, twenty-five".