15625074488 has 32 divisors (see below), whose sum is σ = 30330828000. Its totient is φ = 7537272960.

The previous prime is 15625074481. The next prime is 15625074511. The reversal of 15625074488 is 88447052651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15625074481) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 280478 + ... + 331538.

It is an arithmetic number, because the mean of its divisors is an integer number (947838375).

Almost surely, 2^15625074488 is an apocalyptic number.

It is an amenable number.

15625074488 is a deficient number, since it is larger than the sum of its proper divisors (14705753512).

15625074488 is a wasteful number, since it uses less digits than its factorization.

15625074488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52415 (or 52411 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 15625074488 in words is "fifteen billion, six hundred twenty-five million, seventy-four thousand, four hundred eighty-eight".