100455520 has 48 divisors (see below), whose sum is σ = 258905808. Its totient is φ = 36528640.

The previous prime is 100455503. The next prime is 100455529. The reversal of 100455520 is 25554001.

It is a super-2 number, since 2×100455520² = 20182622996940800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 100455491 and 100455500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100455529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26779 + ... + 30298.

It is an arithmetic number, because the mean of its divisors is an integer number (5393871).

Almost surely, 2^100455520 is an apocalyptic number.

100455520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100455520 is an abundant number, since it is smaller than the sum of its proper divisors (158450288).

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

100455520 is a wasteful number, since it uses less digits than its factorization.

100455520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57103 (or 57095 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 100455520 is about 10022.7501215984. The cubic root of 100455520 is about 464.8625947735.

The spelling of 100455520 in words is "one hundred million, four hundred fifty-five thousand, five hundred twenty".