15315152520 has 64 divisors (see below), whose sum is σ = 45987963840. Its totient is φ = 4080262400.

The previous prime is 15315152519. The next prime is 15315152543. The reversal of 15315152520 is 2525151351.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72430 + ... + 189410.

It is an arithmetic number, because the mean of its divisors is an integer number (718561935).

Almost surely, 2^15315152520 is an apocalyptic number.

15315152520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15315152520 is an abundant number, since it is smaller than the sum of its proper divisors (30672811320).

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

15315152520 is a wasteful number, since it uses less digits than its factorization.

15315152520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118086 (or 118082 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 15315152520 in words is "fifteen billion, three hundred fifteen million, one hundred fifty-two thousand, five hundred twenty".