100553992 has 64 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 38955840.

The previous prime is 100553977. The next prime is 100554011. The reversal of 100553992 is 299355001.

It is a happy number.

It is a super-2 number, since 2×100553992² = 20222210614272128, which contains 22 as substring.

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, 146883 + ... + 147565.

It is an arithmetic number, because the mean of its divisors is an integer number (3693600).

Almost surely, 2^100553992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100553992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118195200).

100553992 is an abundant number, since it is smaller than the sum of its proper divisors (135836408).

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

100553992 is a wasteful number, since it uses less digits than its factorization.

100553992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 100553992 is about 10027.6613425065. The cubic root of 100553992 is about 465.0144397566.

The spelling of 100553992 in words is "one hundred million, five hundred fifty-three thousand, nine hundred ninety-two".