99550539 has 24 divisors (see below), whose sum is σ = 162681792. Its totient is φ = 60332040.

The previous prime is 99550531. The next prime is 99550541. The reversal of 99550539 is 93505599.

99550539 is a `hidden beast` number, since 99 + 550 + 5 + 3 + 9 = 666.

It is not a de Polignac number, because 99550539 - 2³ = 99550531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99550494 and 99550503.

It is not an unprimeable number, because it can be changed into a prime (99550531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15949 + ... + 21294.

It is an arithmetic number, because the mean of its divisors is an integer number (6778408).

Almost surely, 2^99550539 is an apocalyptic number.

99550539 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99550539 is a deficient number, since it is larger than the sum of its proper divisors (63131253).

99550539 is a wasteful number, since it uses less digits than its factorization.

99550539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37269 (or 37257 counting only the distinct ones).

The product of its (nonzero) digits is 273375, while the sum is 45.

The square root of 99550539 is about 9977.5016411925. The cubic root of 99550539 is about 463.4624345085.

The spelling of 99550539 in words is "ninety-nine million, five hundred fifty thousand, five hundred thirty-nine".