10520555100 has 144 divisors (see below), whose sum is σ = 33250538496. Its totient is φ = 2547072000.

The previous prime is 10520555083. The next prime is 10520555131. The reversal of 10520555100 is 155502501.

It is a super-2 number, since 2×10520555100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3268692 + ... + 3271908.

Almost surely, 2^10520555100 is an apocalyptic number.

10520555100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10520555100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16625269248).

10520555100 is an abundant number, since it is smaller than the sum of its proper divisors (22729983396).

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

10520555100 is a wasteful number, since it uses less digits than its factorization.

10520555100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The spelling of 10520555100 in words is "ten billion, five hundred twenty million, five hundred fifty-five thousand, one hundred".