99985522 has 32 divisors (see below), whose sum is σ = 185472000. Its totient is φ = 39365568.

The previous prime is 99985489. The next prime is 99985547. The reversal of 99985522 is 22558999.

It is a happy number.

It is a super-2 number, since 2×99985522² = 19994209219224968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40479 + ... + 42877.

It is an arithmetic number, because the mean of its divisors is an integer number (5796000).

Almost surely, 2^99985522 is an apocalyptic number.

99985522 is a deficient number, since it is larger than the sum of its proper divisors (85486478).

99985522 is a wasteful number, since it uses less digits than its factorization.

99985522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 583200, while the sum is 49.

The square root of 99985522 is about 9999.2760737965. The cubic root of 99985522 is about 464.1364819724.

The spelling of 99985522 in words is "ninety-nine million, nine hundred eighty-five thousand, five hundred twenty-two".