57285977 has 4 divisors (see below), whose sum is σ = 65469696. Its totient is φ = 49102260.

The previous prime is 57285967. The next prime is 57285983. The reversal of 57285977 is 77958275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57285977 - 2⁶ = 57285913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57285967) 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, 4091849 + ... + 4091862.

It is an arithmetic number, because the mean of its divisors is an integer number (16367424).

Almost surely, 2^57285977 is an apocalyptic number.

It is an amenable number.

57285977 is a deficient number, since it is larger than the sum of its proper divisors (8183719).

57285977 is an equidigital number, since it uses as much as digits as its factorization.

57285977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8183718.

The product of its digits is 1234800, while the sum is 50.

The square root of 57285977 is about 7568.7500289017. The cubic root of 57285977 is about 385.4926554250.

The spelling of 57285977 in words is "fifty-seven million, two hundred eighty-five thousand, nine hundred seventy-seven".