25400522364 has 24 divisors (see below), whose sum is σ = 67734726528. Its totient is φ = 7257292080.

The previous prime is 25400522363. The next prime is 25400522383. The reversal of 25400522364 is 46322500452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25400522363) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 151193502 + ... + 151193669.

It is an arithmetic number, because the mean of its divisors is an integer number (2822280272).

Almost surely, 2^25400522364 is an apocalyptic number.

It is an amenable number.

25400522364 is an abundant number, since it is smaller than the sum of its proper divisors (42334204164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25400522364 is a wasteful number, since it uses less digits than its factorization.

25400522364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302387185 (or 302387183 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 25400522364 in words is "twenty-five billion, four hundred million, five hundred twenty-two thousand, three hundred sixty-four".