99542507 has 2 divisors, whose sum is σ = 99542508. Its totient is φ = 99542506.

The previous prime is 99542477. The next prime is 99542557. The reversal of 99542507 is 70524599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99542507 - 2¹⁰ = 99541483 is a prime.

It is not a weakly prime, because it can be changed into another prime (99542557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49771253 + 49771254.

It is an arithmetic number, because the mean of its divisors is an integer number (49771254).

Almost surely, 2^99542507 is an apocalyptic number.

99542507 is a deficient number, since it is larger than the sum of its proper divisors (1).

99542507 is an equidigital number, since it uses as much as digits as its factorization.

99542507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 99542507 is about 9977.0991275019. The cubic root of 99542507 is about 463.4499697162.

The spelling of 99542507 in words is "ninety-nine million, five hundred forty-two thousand, five hundred seven".