99500457 has 16 divisors (see below), whose sum is σ = 154847232. Its totient is φ = 55647120.

The previous prime is 99500449. The next prime is 99500501. The reversal of 99500457 is 75400599.

It is not a de Polignac number, because 99500457 - 2³ = 99500449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99500417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49419 + ... + 51392.

It is an arithmetic number, because the mean of its divisors is an integer number (9677952).

Almost surely, 2^99500457 is an apocalyptic number.

It is an amenable number.

99500457 is a deficient number, since it is larger than the sum of its proper divisors (55346775).

99500457 is a wasteful number, since it uses less digits than its factorization.

99500457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100868.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 99500457 is about 9974.9915789438. The cubic root of 99500457 is about 463.3847017330.

The spelling of 99500457 in words is "ninety-nine million, five hundred thousand, four hundred fifty-seven".