99051880 has 16 divisors (see below), whose sum is σ = 222866820. Its totient is φ = 39620736.

The previous prime is 99051871. The next prime is 99051937. The reversal of 99051880 is 8815099.

It can be written as a sum of positive squares in 2 ways, for example, as 86899684 + 12152196 = 9322^2 + 3486^2 .

It is a super-2 number, since 2×99051880² = 19622549863068800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2476297 = 99051880 / (9 + 9 + 0 + 5 + 1 + 8 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238109 + ... + 1238188.

Almost surely, 2^99051880 is an apocalyptic number.

It is an amenable number.

99051880 is an abundant number, since it is smaller than the sum of its proper divisors (123814940).

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

99051880 is a wasteful number, since it uses less digits than its factorization.

99051880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476308 (or 2476304 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 99051880 is about 9952.4810976962. The cubic root of 99051880 is about 462.6872949727.

The spelling of 99051880 in words is "ninety-nine million, fifty-one thousand, eight hundred eighty".