99551804 has 12 divisors (see below), whose sum is σ = 190053528. Its totient is φ = 45250800.

The previous prime is 99551743. The next prime is 99551807. The reversal of 99551804 is 40815599.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99551807) 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, 1131227 + ... + 1131314.

It is an arithmetic number, because the mean of its divisors is an integer number (15837794).

Almost surely, 2^99551804 is an apocalyptic number.

It is an amenable number.

99551804 is a deficient number, since it is larger than the sum of its proper divisors (90501724).

99551804 is a wasteful number, since it uses less digits than its factorization.

99551804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262556 (or 2262554 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 99551804 is about 9977.5650336142. The cubic root of 99551804 is about 463.4643975901.

The spelling of 99551804 in words is "ninety-nine million, five hundred fifty-one thousand, eight hundred four".