100455553 has 4 divisors (see below), whose sum is σ = 109587888. Its totient is φ = 91323220.

The previous prime is 100455547. The next prime is 100455569. The reversal of 100455553 is 355554001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100455553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100455503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4566151 + ... + 4566172.

It is an arithmetic number, because the mean of its divisors is an integer number (27396972).

Almost surely, 2^100455553 is an apocalyptic number.

It is an amenable number.

100455553 is a deficient number, since it is larger than the sum of its proper divisors (9132335).

100455553 is an equidigital number, since it uses as much as digits as its factorization.

100455553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132334.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 100455553 is about 10022.7517678530. The cubic root of 100455553 is about 464.8626456765.

The spelling of 100455553 in words is "one hundred million, four hundred fifty-five thousand, five hundred fifty-three".