2057717311 has 4 divisors (see below), whose sum is σ = 2216003272. Its totient is φ = 1899431352.

The previous prime is 2057717279. The next prime is 2057717323. The reversal of 2057717311 is 1137177502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2057717311 - 2⁵ = 2057717279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057717381) 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, 79142961 + ... + 79142986.

It is an arithmetic number, because the mean of its divisors is an integer number (554000818).

Almost surely, 2^2057717311 is an apocalyptic number.

2057717311 is a deficient number, since it is larger than the sum of its proper divisors (158285961).

2057717311 is a wasteful number, since it uses less digits than its factorization.

2057717311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158285960.

The product of its (nonzero) digits is 10290, while the sum is 34.

The square root of 2057717311 is about 45362.0690775895. The cubic root of 2057717311 is about 1271.9261719525.

The spelling of 2057717311 in words is "two billion, fifty-seven million, seven hundred seventeen thousand, three hundred eleven".