57080777 has 4 divisors (see below), whose sum is σ = 61471620. Its totient is φ = 52689936.

The previous prime is 57080669. The next prime is 57080791. The reversal of 57080777 is 77708075.

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 5470921 + 51609856 = 2339^2 + 7184^2 .

It is a de Polignac number, because none of the positive numbers 2^k-57080777 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57080797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2195402 + ... + 2195427.

It is an arithmetic number, because the mean of its divisors is an integer number (15367905).

Almost surely, 2^57080777 is an apocalyptic number.

It is an amenable number.

57080777 is a deficient number, since it is larger than the sum of its proper divisors (4390843).

57080777 is a wasteful number, since it uses less digits than its factorization.

57080777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390842.

The product of its (nonzero) digits is 96040, while the sum is 41.

The square root of 57080777 is about 7555.1821288438. The cubic root of 57080777 is about 385.0318228601.

The spelling of 57080777 in words is "fifty-seven million, eighty thousand, seven hundred seventy-seven".