100552550 has 48 divisors (see below), whose sum is σ = 223057152. Its totient is φ = 32973600.

The previous prime is 100552549. The next prime is 100552567. The reversal of 100552550 is 55255001.

It is a super-2 number, since 2×100552550² = 20221630623005000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1805 + ... + 14295.

It is an arithmetic number, because the mean of its divisors is an integer number (4647024).

Almost surely, 2^100552550 is an apocalyptic number.

100552550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100552550 is an abundant number, since it is smaller than the sum of its proper divisors (122504602).

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

100552550 is a wasteful number, since it uses less digits than its factorization.

100552550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533 (or 12528 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 100552550 is about 10027.5894411369. The cubic root of 100552550 is about 465.0122168910.

The spelling of 100552550 in words is "one hundred million, five hundred fifty-two thousand, five hundred fifty".