99455113531 has 4 divisors (see below), whose sum is σ = 101768023192. Its totient is φ = 97142203872.

The previous prime is 99455113523. The next prime is 99455113547. The reversal of 99455113531 is 13531155499.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99455113531 - 2³ = 99455113523 is a prime.

It is a super-2 number, since 2×99455113531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99455113561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156454766 + ... + 1156454851.

It is an arithmetic number, because the mean of its divisors is an integer number (25442005798).

Almost surely, 2^99455113531 is an apocalyptic number.

99455113531 is a deficient number, since it is larger than the sum of its proper divisors (2312909661).

99455113531 is a wasteful number, since it uses less digits than its factorization.

99455113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312909660.

The product of its digits is 364500, while the sum is 46.

The spelling of 99455113531 in words is "ninety-nine billion, four hundred fifty-five million, one hundred thirteen thousand, five hundred thirty-one".