99556403 has 8 divisors (see below), whose sum is σ = 105827472. Its totient is φ = 93331456.

The previous prime is 99556367. The next prime is 99556411. The reversal of 99556403 is 30465599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99556403 - 2¹⁴ = 99540019 is a prime.

It is a super-2 number, since 2×99556403² = 19822954756596818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99556433) 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, 7025 + ... + 15762.

It is an arithmetic number, because the mean of its divisors is an integer number (13228434).

Almost surely, 2^99556403 is an apocalyptic number.

99556403 is a deficient number, since it is larger than the sum of its proper divisors (6271069).

99556403 is a wasteful number, since it uses less digits than its factorization.

99556403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23061.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 99556403 is about 9977.7954980046. The cubic root of 99556403 is about 463.4715343767.

The spelling of 99556403 in words is "ninety-nine million, five hundred fifty-six thousand, four hundred three".