25055278025 has 12 divisors (see below), whose sum is σ = 32070756864. Its totient is φ = 19397634000.

The previous prime is 25055278021. The next prime is 25055278033. The reversal of 25055278025 is 52087255052.

It is not a de Polignac number, because 25055278025 - 2² = 25055278021 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25055278021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16163921 + ... + 16165470.

It is an arithmetic number, because the mean of its divisors is an integer number (2672563072).

Almost surely, 2^25055278025 is an apocalyptic number.

25055278025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25055278025 is a deficient number, since it is larger than the sum of its proper divisors (7015478839).

25055278025 is a wasteful number, since it uses less digits than its factorization.

25055278025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32329432 (or 32329427 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 41.

The spelling of 25055278025 in words is "twenty-five billion, fifty-five million, two hundred seventy-eight thousand, twenty-five".