99765552 has 20 divisors (see below), whose sum is σ = 257727800. Its totient is φ = 33255168.

The previous prime is 99765541. The next prime is 99765577. The reversal of 99765552 is 25556799.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 2078449 = 99765552 / (9 + 9 + 7 + 6 + 5 + 5 + 5 + 2).

It is a nialpdrome in base 10.

It is an unprimeable number.

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, 1039177 + ... + 1039272.

It is an arithmetic number, because the mean of its divisors is an integer number (12886390).

Almost surely, 2^99765552 is an apocalyptic number.

It is an amenable number.

99765552 is an abundant number, since it is smaller than the sum of its proper divisors (157962248).

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

99765552 is a wasteful number, since it uses less digits than its factorization.

99765552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078460 (or 2078454 counting only the distinct ones).

The product of its digits is 850500, while the sum is 48.

The square root of 99765552 is about 9988.2707212009. The cubic root of 99765552 is about 463.7958624419.

The spelling of 99765552 in words is "ninety-nine million, seven hundred sixty-five thousand, five hundred fifty-two".