99305057 has 4 divisors (see below), whose sum is σ = 99691716. Its totient is φ = 98918400.

The previous prime is 99305029. The next prime is 99305069. The reversal of 99305057 is 75050399.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56911936 + 42393121 = 7544^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 99305057 - 2¹⁶ = 99239521 is a prime.

It is a super-2 number, since 2×99305057² = 19722988691546498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99305057.

It is not an unprimeable number, because it can be changed into a prime (99304057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192944 + ... + 193457.

It is an arithmetic number, because the mean of its divisors is an integer number (24922929).

Almost surely, 2^99305057 is an apocalyptic number.

It is an amenable number.

99305057 is a deficient number, since it is larger than the sum of its proper divisors (386659).

99305057 is a wasteful number, since it uses less digits than its factorization.

99305057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386658.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 99305057 is about 9965.1922711004. The cubic root of 99305057 is about 463.0811697711.

The spelling of 99305057 in words is "ninety-nine million, three hundred five thousand, fifty-seven".