99000057 has 16 divisors (see below), whose sum is σ = 144160128. Its totient is φ = 60063360.

The previous prime is 99000047. The next prime is 99000059. The reversal of 99000057 is 75000099.

It is a happy number.

It is not a de Polignac number, because 99000057 - 2¹² = 98995961 is a prime.

It is a super-2 number, since 2×99000057² = 19602022572006498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98999988 and 99000033.

It is not an unprimeable number, because it can be changed into a prime (99000059) 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, 15108 + ... + 20645.

It is an arithmetic number, because the mean of its divisors is an integer number (9010008).

Almost surely, 2^99000057 is an apocalyptic number.

It is an amenable number.

99000057 is a deficient number, since it is larger than the sum of its proper divisors (45160071).

99000057 is a wasteful number, since it uses less digits than its factorization.

99000057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35840.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 99000057 is about 9949.8772354236. The cubic root of 99000057 is about 462.6065897013.

The spelling of 99000057 in words is "ninety-nine million, fifty-seven", and thus it is an aban number and an uban number.