25365560412 has 24 divisors (see below), whose sum is σ = 59618328336. Its totient is φ = 8393469568.

The previous prime is 25365560411. The next prime is 25365560453. The reversal of 25365560412 is 21406556352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25365560411) 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, 7712943 + ... + 7716230.

It is an arithmetic number, because the mean of its divisors is an integer number (2484097014).

Almost surely, 2^25365560412 is an apocalyptic number.

It is an amenable number.

25365560412 is an abundant number, since it is smaller than the sum of its proper divisors (34252767924).

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

25365560412 is a wasteful number, since it uses less digits than its factorization.

25365560412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15429317 (or 15429315 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 25365560412 in words is "twenty-five billion, three hundred sixty-five million, five hundred sixty thousand, four hundred twelve".