15215054504 has 128 divisors (see below), whose sum is σ = 31865248800. Its totient is φ = 6768230400.

The previous prime is 15215054501. The next prime is 15215054513. The reversal of 15215054504 is 40545051251.

15215054504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 4994248900 + 10220805604 = 70670^2 + 101098^2 .

It is not an unprimeable number, because it can be changed into a prime (15215054501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111058724 + ... + 111058860.

Almost surely, 2^15215054504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15215054504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15932624400).

15215054504 is an abundant number, since it is smaller than the sum of its proper divisors (16650194296).

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

15215054504 is a wasteful number, since it uses less digits than its factorization.

15215054504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 15215054504 in words is "fifteen billion, two hundred fifteen million, fifty-four thousand, five hundred four".