57116551 has 8 divisors (see below), whose sum is σ = 57931200. Its totient is φ = 56305920.

The previous prime is 57116537. The next prime is 57116561. The reversal of 57116551 is 15561175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57116551 - 2⁵ = 57116519 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 (57116561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37615 + ... + 39103.

It is an arithmetic number, because the mean of its divisors is an integer number (7241400).

Almost surely, 2^57116551 is an apocalyptic number.

57116551 is a deficient number, since it is larger than the sum of its proper divisors (814649).

57116551 is a wasteful number, since it uses less digits than its factorization.

57116551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009.

The product of its digits is 5250, while the sum is 31.

The square root of 57116551 is about 7557.5492720855. The cubic root of 57116551 is about 385.1122425310.

The spelling of 57116551 in words is "fifty-seven million, one hundred sixteen thousand, five hundred fifty-one".