57117959 has 4 divisors (see below), whose sum is σ = 58086120. Its totient is φ = 56149800.

The previous prime is 57117937. The next prime is 57118001. The reversal of 57117959 is 95971175.

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 57117959 - 2¹⁶ = 57052423 is a prime.

It is a super-2 number, since 2×57117959² = 6524922480651362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57117859) 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, 483992 + ... + 484109.

It is an arithmetic number, because the mean of its divisors is an integer number (14521530).

Almost surely, 2^57117959 is an apocalyptic number.

57117959 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

57117959 is a deficient number, since it is larger than the sum of its proper divisors (968161).

57117959 is an equidigital number, since it uses as much as digits as its factorization.

57117959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968160.

The product of its digits is 99225, while the sum is 44.

The square root of 57117959 is about 7557.6424234016. The cubic root of 57117959 is about 385.1154070170.

The spelling of 57117959 in words is "fifty-seven million, one hundred seventeen thousand, nine hundred fifty-nine".