57077513 has 6 divisors (see below), whose sum is σ = 59667594. Its totient is φ = 54595376.

The previous prime is 57077509. The next prime is 57077521. The reversal of 57077513 is 31577075.

It can be written as a sum of positive squares in only one way, i.e., 47293129 + 9784384 = 6877^2 + 3128^2 .

It is not a de Polignac number, because 57077513 - 2² = 57077509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57077533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53420 + ... + 54477.

It is an arithmetic number, because the mean of its divisors is an integer number (9944599).

Almost surely, 2^57077513 is an apocalyptic number.

It is an amenable number.

57077513 is a deficient number, since it is larger than the sum of its proper divisors (2590081).

57077513 is a wasteful number, since it uses less digits than its factorization.

57077513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107943 (or 107920 counting only the distinct ones).

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 57077513 is about 7554.9661150795. The cubic root of 57077513 is about 385.0244837412.

The spelling of 57077513 in words is "fifty-seven million, seventy-seven thousand, five hundred thirteen".