99057019 has 4 divisors (see below), whose sum is σ = 99341200. Its totient is φ = 98772840.

The previous prime is 99057017. The next prime is 99057041. The reversal of 99057019 is 91075099.

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

It is a cyclic number.

It is not a de Polignac number, because 99057019 - 2¹ = 99057017 is a prime.

It is a super-2 number, since 2×99057019² = 19624586026332722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99057017) 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, 141567 + ... + 142264.

It is an arithmetic number, because the mean of its divisors is an integer number (24835300).

Almost surely, 2^99057019 is an apocalyptic number.

99057019 is a deficient number, since it is larger than the sum of its proper divisors (284181).

99057019 is a wasteful number, since it uses less digits than its factorization.

99057019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284180.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 99057019 is about 9952.7392711755. The cubic root of 99057019 is about 462.6952965334.

The spelling of 99057019 in words is "ninety-nine million, fifty-seven thousand, nineteen".