30557199 has 4 divisors (see below), whose sum is σ = 40742936. Its totient is φ = 20371464.

The previous prime is 30557183. The next prime is 30557201. The reversal of 30557199 is 99175503.

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

It is not a de Polignac number, because 30557199 - 2⁴ = 30557183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30557119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5092864 + ... + 5092869.

It is an arithmetic number, because the mean of its divisors is an integer number (10185734).

Almost surely, 2^30557199 is an apocalyptic number.

30557199 is a deficient number, since it is larger than the sum of its proper divisors (10185737).

30557199 is a wasteful number, since it uses less digits than its factorization.

30557199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10185736.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 30557199 is about 5527.8566370701. The cubic root of 30557199 is about 312.6351807686.

The spelling of 30557199 in words is "thirty million, five hundred fifty-seven thousand, one hundred ninety-nine".