15604364425 has 12 divisors (see below), whose sum is σ = 20837828620. Its totient is φ = 11523222720.

The previous prime is 15604364417. The next prime is 15604364437. The reversal of 15604364425 is 52446340651.

It can be written as a sum of positive squares in 6 ways, for example, as 1824656656 + 13779707769 = 42716^2 + 117387^2 .

It is not a de Polignac number, because 15604364425 - 2³ = 15604364417 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24006390 + ... + 24007039.

Almost surely, 2^15604364425 is an apocalyptic number.

It is an amenable number.

15604364425 is a deficient number, since it is larger than the sum of its proper divisors (5233464195).

15604364425 is a wasteful number, since it uses less digits than its factorization.

15604364425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48013452 (or 48013447 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 15604364425 in words is "fifteen billion, six hundred four million, three hundred sixty-four thousand, four hundred twenty-five".