9975115501 has 16 divisors (see below), whose sum is σ = 11338243840. Its totient is φ = 8699711040.

The previous prime is 9975115499. The next prime is 9975115511. The reversal of 9975115501 is 1055115799.

9975115501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9975115501 - 2¹ = 9975115499 is a prime.

It is the 99876-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975115511) by changing a digit.

It is a nontrivial repunit in base 99875.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37996 + ... + 146266.

It is an arithmetic number, because the mean of its divisors is an integer number (708640240).

Almost surely, 2^9975115501 is an apocalyptic number.

It is an amenable number.

9975115501 is a deficient number, since it is larger than the sum of its proper divisors (1363128339).

9975115501 is a wasteful number, since it uses less digits than its factorization.

9975115501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108676.

The product of its (nonzero) digits is 70875, while the sum is 43.

The square root of 9975115501 is about 99875.5000037547. The cubic root of 9975115501 is about 2152.6461380401.

The spelling of 9975115501 in words is "nine billion, nine hundred seventy-five million, one hundred fifteen thousand, five hundred one".