25046605764 has 36 divisors (see below), whose sum is σ = 63678236076. Its totient is φ = 8300607168.

The previous prime is 25046605763. The next prime is 25046605781. The reversal of 25046605764 is 46750664052.

It can be written as a sum of positive squares in 2 ways, for example, as 24042983364 + 1003622400 = 155058^2 + 31680^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (25046605763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2004579 + ... + 2017034.

It is an arithmetic number, because the mean of its divisors is an integer number (1768839891).

Almost surely, 2^25046605764 is an apocalyptic number.

It is an amenable number.

25046605764 is an abundant number, since it is smaller than the sum of its proper divisors (38631630312).

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

25046605764 is a wasteful number, since it uses less digits than its factorization.

25046605764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021796 (or 4021791 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 25046605764 in words is "twenty-five billion, forty-six million, six hundred five thousand, seven hundred sixty-four".