99332557 has 2 divisors, whose sum is σ = 99332558. Its totient is φ = 99332556.

The previous prime is 99332539. The next prime is 99332579. The reversal of 99332557 is 75523399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 43217476 = 7491^2 + 6574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99332557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99332507) 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 as a sum of consecutive naturals, namely, 49666278 + 49666279.

It is an arithmetic number, because the mean of its divisors is an integer number (49666279).

Almost surely, 2^99332557 is an apocalyptic number.

It is an amenable number.

99332557 is a deficient number, since it is larger than the sum of its proper divisors (1).

99332557 is an equidigital number, since it uses as much as digits as its factorization.

99332557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 255150, while the sum is 43.

The square root of 99332557 is about 9966.5719783685. The cubic root of 99332557 is about 463.1239119946.

The spelling of 99332557 in words is "ninety-nine million, three hundred thirty-two thousand, five hundred fifty-seven".