99504951 has 32 divisors (see below), whose sum is σ = 167720448. Its totient is φ = 51062400.

The previous prime is 99504949. The next prime is 99504997. The reversal of 99504951 is 15940599.

It is a happy number.

It is not a de Polignac number, because 99504951 - 2¹ = 99504949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99504941) 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 31 ways as a sum of consecutive naturals, for example, 5176 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (5241264).

Almost surely, 2^99504951 is an apocalyptic number.

99504951 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99504951 is a deficient number, since it is larger than the sum of its proper divisors (68215497).

99504951 is a wasteful number, since it uses less digits than its factorization.

99504951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 99504951 is about 9975.2168397484. The cubic root of 99504951 is about 463.3916779807.

The spelling of 99504951 in words is "ninety-nine million, five hundred four thousand, nine hundred fifty-one".