57377761 has 4 divisors (see below), whose sum is σ = 65574592. Its totient is φ = 49180932.

The previous prime is 57377753. The next prime is 57377767. The reversal of 57377761 is 16777375.

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 57377761 - 2³ = 57377753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57377767) 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, 4098405 + ... + 4098418.

It is an arithmetic number, because the mean of its divisors is an integer number (16393648).

Almost surely, 2^57377761 is an apocalyptic number.

It is an amenable number.

57377761 is a deficient number, since it is larger than the sum of its proper divisors (8196831).

57377761 is an equidigital number, since it uses as much as digits as its factorization.

57377761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196830.

The product of its digits is 216090, while the sum is 43.

The square root of 57377761 is about 7574.8109547368. The cubic root of 57377761 is about 385.6984252607.

The spelling of 57377761 in words is "fifty-seven million, three hundred seventy-seven thousand, seven hundred sixty-one".