99556051 has 16 divisors (see below), whose sum is σ = 117494784. Its totient is φ = 82583424.

The previous prime is 99556031. The next prime is 99556057. The reversal of 99556051 is 15065599.

It is not a de Polignac number, because 99556051 - 2⁵ = 99556019 is a prime.

It is a super-2 number, since 2×99556051² = 19822814581429202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99555995 and 99556013.

It is not an unprimeable number, because it can be changed into a prime (99556057) 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, 32550 + ... + 35476.

It is an arithmetic number, because the mean of its divisors is an integer number (7343424).

Almost surely, 2^99556051 is an apocalyptic number.

99556051 is a deficient number, since it is larger than the sum of its proper divisors (17938733).

99556051 is a wasteful number, since it uses less digits than its factorization.

99556051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090.

The product of its (nonzero) digits is 60750, while the sum is 40.

The square root of 99556051 is about 9977.7778588221. Note that the first 3 decimals coincide. The cubic root of 99556051 is about 463.4709881464.

The spelling of 99556051 in words is "ninety-nine million, five hundred fifty-six thousand, fifty-one".