57257711 has 8 divisors (see below), whose sum is σ = 66510624. Its totient is φ = 48273120.

The previous prime is 57257701. The next prime is 57257749. The reversal of 57257711 is 11775275.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57257711 - 2⁶ = 57257647 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57257701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66620 + ... + 67473.

It is an arithmetic number, because the mean of its divisors is an integer number (8313828).

Almost surely, 2^57257711 is an apocalyptic number.

57257711 is a deficient number, since it is larger than the sum of its proper divisors (9252913).

57257711 is a wasteful number, since it uses less digits than its factorization.

57257711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134161.

The product of its digits is 17150, while the sum is 35.

The square root of 57257711 is about 7566.8825152767. The cubic root of 57257711 is about 385.4292418369.

The spelling of 57257711 in words is "fifty-seven million, two hundred fifty-seven thousand, seven hundred eleven".