13875132520 has 32 divisors (see below), whose sum is σ = 32226117120. Its totient is φ = 5371018560.

The previous prime is 13875132463. The next prime is 13875132541. The reversal of 13875132520 is 2523157831.

It is a self number, because there is not a number n which added to its sum of digits gives 13875132520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5593572 + ... + 5596051.

It is an arithmetic number, because the mean of its divisors is an integer number (1007066160).

Almost surely, 2^13875132520 is an apocalyptic number.

13875132520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13875132520 is an abundant number, since it is smaller than the sum of its proper divisors (18350984600).

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

13875132520 is a wasteful number, since it uses less digits than its factorization.

13875132520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11189665 (or 11189661 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 13875132520 in words is "thirteen billion, eight hundred seventy-five million, one hundred thirty-two thousand, five hundred twenty".