13105052520 has 64 divisors (see below), whose sum is σ = 44931611520. Its totient is φ = 2995440384.

The previous prime is 13105052501. The next prime is 13105052551. The reversal of 13105052520 is 2525050131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 7799787 + ... + 7801466.

It is an arithmetic number, because the mean of its divisors is an integer number (702056430).

Almost surely, 2^13105052520 is an apocalyptic number.

13105052520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13105052520 is an abundant number, since it is smaller than the sum of its proper divisors (31826559000).

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

13105052520 is a wasteful number, since it uses less digits than its factorization.

13105052520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15601274 (or 15601270 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The spelling of 13105052520 in words is "thirteen billion, one hundred five million, fifty-two thousand, five hundred twenty".