13515250050 has 144 divisors (see below), whose sum is σ = 38794198560. Its totient is φ = 3363275520.

The previous prime is 13515250043. The next prime is 13515250081. The reversal of 13515250050 is 5005251531.

13515250050 is a `hidden beast` number, since 1 + 3 + 5 + 152 + 500 + 5 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13515249996 and 13515250023.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 561054 + ... + 584646.

Almost surely, 2^13515250050 is an apocalyptic number.

13515250050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13515250050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19397099280).

13515250050 is an abundant number, since it is smaller than the sum of its proper divisors (25278948510).

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

13515250050 is a wasteful number, since it uses less digits than its factorization.

13515250050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23697 (or 23689 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 13515250050 in words is "thirteen billion, five hundred fifteen million, two hundred fifty thousand, fifty".