99042553 has 4 divisors (see below), whose sum is σ = 99062608. Its totient is φ = 99022500.

The previous prime is 99042547. The next prime is 99042557. The reversal of 99042553 is 35524099.

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-99042553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99042557) 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, 3178 + ... + 14428.

It is an arithmetic number, because the mean of its divisors is an integer number (24765652).

Almost surely, 2^99042553 is an apocalyptic number.

It is an amenable number.

99042553 is a deficient number, since it is larger than the sum of its proper divisors (20055).

99042553 is a wasteful number, since it uses less digits than its factorization.

99042553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20054.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 99042553 is about 9952.0125100404. The cubic root of 99042553 is about 462.6727718768.

The spelling of 99042553 in words is "ninety-nine million, forty-two thousand, five hundred fifty-three".