2057264887 has 4 divisors (see below), whose sum is σ = 2060167240. Its totient is φ = 2054362536.

The previous prime is 2057264863. The next prime is 2057264897. The reversal of 2057264887 is 7884627502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2057264887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2057264887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057264897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450113 + ... + 1451530.

It is an arithmetic number, because the mean of its divisors is an integer number (515041810).

Almost surely, 2^2057264887 is an apocalyptic number.

2057264887 is a deficient number, since it is larger than the sum of its proper divisors (2902353).

2057264887 is an equidigital number, since it uses as much as digits as its factorization.

2057264887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902352.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The square root of 2057264887 is about 45357.0819938849. The cubic root of 2057264887 is about 1271.8329469497.

The spelling of 2057264887 in words is "two billion, fifty-seven million, two hundred sixty-four thousand, eight hundred eighty-seven".