99518506 has 16 divisors (see below), whose sum is σ = 150689448. Its totient is φ = 49291200.

The previous prime is 99518501. The next prime is 99518519. The reversal of 99518506 is 60581599.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10989225 + 88529281 = 3315^2 + 9409^2 .

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152076 + ... + 152728.

Almost surely, 2^99518506 is an apocalyptic number.

99518506 is a deficient number, since it is larger than the sum of its proper divisors (51170942).

99518506 is a wasteful number, since it uses less digits than its factorization.

99518506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 99518506 is about 9975.8962504629. The cubic root of 99518506 is about 463.4127187729.

The spelling of 99518506 in words is "ninety-nine million, five hundred eighteen thousand, five hundred six".