99518507 has 12 divisors (see below), whose sum is σ = 109964400. Its totient is φ = 89994960.

The previous prime is 99518501. The next prime is 99518519. The reversal of 99518507 is 70581599.

It is a happy number.

It is not a de Polignac number, because 99518507 - 2¹² = 99514411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99518501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22013 + ... + 26145.

It is an arithmetic number, because the mean of its divisors is an integer number (9163700).

Almost surely, 2^99518507 is an apocalyptic number.

99518507 is a deficient number, since it is larger than the sum of its proper divisors (10445893).

99518507 is a wasteful number, since it uses less digits than its factorization.

99518507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354 (or 4343 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 99518507 is about 9975.8963005837. The cubic root of 99518507 is about 463.4127203251.

The spelling of 99518507 in words is "ninety-nine million, five hundred eighteen thousand, five hundred seven".