57990019 has 4 divisors (see below), whose sum is σ = 58128840. Its totient is φ = 57851200.

The previous prime is 57990013. The next prime is 57990073. The reversal of 57990019 is 91009975.

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 57990019 - 2³ = 57990011 is a prime.

It is a super-2 number, since 2×57990019² = 6725684607240722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57990011) 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, 68782 + ... + 69619.

It is an arithmetic number, because the mean of its divisors is an integer number (14532210).

Almost surely, 2^57990019 is an apocalyptic number.

57990019 is a deficient number, since it is larger than the sum of its proper divisors (138821).

57990019 is a wasteful number, since it uses less digits than its factorization.

57990019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138820.

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

The square root of 57990019 is about 7615.1177929169. The cubic root of 57990019 is about 387.0654586397.

The spelling of 57990019 in words is "fifty-seven million, nine hundred ninety thousand, nineteen".