99856057 has 4 divisors (see below), whose sum is σ = 114121216. Its totient is φ = 85590900.

The previous prime is 99856051. The next prime is 99856061. The reversal of 99856057 is 75065899.

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.

It is a cyclic number.

It is not a de Polignac number, because 99856057 - 2³ = 99856049 is a prime.

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 99856057.

It is not an unprimeable number, because it can be changed into a prime (99856051) 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, 7132569 + ... + 7132582.

It is an arithmetic number, because the mean of its divisors is an integer number (28530304).

Almost surely, 2^99856057 is an apocalyptic number.

It is an amenable number.

99856057 is a deficient number, since it is larger than the sum of its proper divisors (14265159).

99856057 is a wasteful number, since it uses less digits than its factorization.

99856057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14265158.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 99856057 is about 9992.8002581859. The cubic root of 99856057 is about 463.9360683444.

The spelling of 99856057 in words is "ninety-nine million, eight hundred fifty-six thousand, fifty-seven".