99330557 has 4 divisors (see below), whose sum is σ = 99360480. Its totient is φ = 99300636.

The previous prime is 99330547. The next prime is 99330587. The reversal of 99330557 is 75503399.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75503399 = 43 ⋅1755893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99330557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99330527) 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 in 3 ways as a sum of consecutive naturals, for example, 9257 + ... + 16862.

It is an arithmetic number, because the mean of its divisors is an integer number (24840120).

Almost surely, 2^99330557 is an apocalyptic number.

It is an amenable number.

99330557 is a deficient number, since it is larger than the sum of its proper divisors (29923).

99330557 is a wasteful number, since it uses less digits than its factorization.

99330557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29922.

The product of its (nonzero) digits is 127575, while the sum is 41.

The square root of 99330557 is about 9966.4716424620. The cubic root of 99330557 is about 463.1208037353.

The spelling of 99330557 in words is "ninety-nine million, three hundred thirty thousand, five hundred fifty-seven".