99975522 has 8 divisors (see below), whose sum is σ = 199951056. Its totient is φ = 33325172.

The previous prime is 99975509. The next prime is 99975529. The reversal of 99975522 is 22557999.

It is a sphenic number, since it is the product of 3 distinct primes.

99975522 is an admirable number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99975529) 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 3 ways as a sum of consecutive naturals, for example, 8331288 + ... + 8331299.

It is an arithmetic number, because the mean of its divisors is an integer number (24993882).

Almost surely, 2^99975522 is an apocalyptic number.

99975522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99975522 is a wasteful number, since it uses less digits than its factorization.

99975522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16662592.

The product of its digits is 510300, while the sum is 48.

The square root of 99975522 is about 9998.7760250943. The cubic root of 99975522 is about 464.1210080002.

The spelling of 99975522 in words is "ninety-nine million, nine hundred seventy-five thousand, five hundred twenty-two".