25274769025 has 24 divisors (see below), whose sum is σ = 34199820000. Its totient is φ = 18376300800.

The previous prime is 25274769017. The next prime is 25274769031. The reversal of 25274769025 is 52096747252.

It is a happy number.

It is not a de Polignac number, because 25274769025 - 2³ = 25274769017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25274769025.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1102126 + ... + 1124824.

It is an arithmetic number, because the mean of its divisors is an integer number (1424992500).

Almost surely, 2^25274769025 is an apocalyptic number.

25274769025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25274769025 is a deficient number, since it is larger than the sum of its proper divisors (8925050975).

25274769025 is a wasteful number, since it uses less digits than its factorization.

25274769025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26769 (or 26764 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 25274769025 in words is "twenty-five billion, two hundred seventy-four million, seven hundred sixty-nine thousand, twenty-five".