99554919 has 16 divisors (see below), whose sum is σ = 138117120. Its totient is φ = 63715680.

The previous prime is 99554911. The next prime is 99554951. The reversal of 99554919 is 91945599.

It is a happy number.

It is not a de Polignac number, because 99554919 - 2³ = 99554911 is a prime.

It is a super-2 number, since 2×99554919² = 19822363794193122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99554911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7597 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (8632320).

Almost surely, 2^99554919 is an apocalyptic number.

99554919 is a deficient number, since it is larger than the sum of its proper divisors (38562201).

99554919 is a wasteful number, since it uses less digits than its factorization.

99554919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590.

The product of its digits is 656100, while the sum is 51.

The square root of 99554919 is about 9977.7211326034. The cubic root of 99554919 is about 463.4692315107.

The spelling of 99554919 in words is "ninety-nine million, five hundred fifty-four thousand, nine hundred nineteen".