57161677 has 4 divisors (see below), whose sum is σ = 57183516. Its totient is φ = 57139840.

The previous prime is 57161669. The next prime is 57161723. The reversal of 57161677 is 77616175.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52620516 + 4541161 = 7254^2 + 2131^2 .

It is a cyclic number.

It is not a de Polignac number, because 57161677 - 2³ = 57161669 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57161617) 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, 6358 + ... + 12439.

It is an arithmetic number, because the mean of its divisors is an integer number (14295879).

Almost surely, 2^57161677 is an apocalyptic number.

It is an amenable number.

57161677 is a deficient number, since it is larger than the sum of its proper divisors (21839).

57161677 is a wasteful number, since it uses less digits than its factorization.

57161677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21838.

The product of its digits is 61740, while the sum is 40.

The square root of 57161677 is about 7560.5341742499. The cubic root of 57161677 is about 385.2136375440.

The spelling of 57161677 in words is "fifty-seven million, one hundred sixty-one thousand, six hundred seventy-seven".