57155799 has 8 divisors (see below), whose sum is σ = 76962672. Its totient is φ = 37726400.

The previous prime is 57155779. The next prime is 57155809. The reversal of 57155799 is 99755175.

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 57155799 - 2⁷ = 57155671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57155779) 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, 94014 + ... + 94619.

It is an arithmetic number, because the mean of its divisors is an integer number (9620334).

Almost surely, 2^57155799 is an apocalyptic number.

57155799 is a deficient number, since it is larger than the sum of its proper divisors (19806873).

57155799 is a wasteful number, since it uses less digits than its factorization.

57155799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188737.

The product of its digits is 496125, while the sum is 48.

The square root of 57155799 is about 7560.1454351090. The cubic root of 57155799 is about 385.2004331065.

The spelling of 57155799 in words is "fifty-seven million, one hundred fifty-five thousand, seven hundred ninety-nine".