2257571913 has 8 divisors (see below), whose sum is σ = 3026726976. Its totient is φ = 1496732400.

The previous prime is 2257571881. The next prime is 2257571947. The reversal of 2257571913 is 3191757522.

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

It is not a de Polignac number, because 2257571913 - 2⁵ = 2257571881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2257571213) 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, 2078253 + ... + 2079338.

It is an arithmetic number, because the mean of its divisors is an integer number (378340872).

Almost surely, 2^2257571913 is an apocalyptic number.

It is an amenable number.

2257571913 is a deficient number, since it is larger than the sum of its proper divisors (769155063).

2257571913 is a wasteful number, since it uses less digits than its factorization.

2257571913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157775.

The product of its digits is 132300, while the sum is 42.

The square root of 2257571913 is about 47513.9128361367. The cubic root of 2257571913 is about 1311.8389791064.

The spelling of 2257571913 in words is "two billion, two hundred fifty-seven million, five hundred seventy-one thousand, nine hundred thirteen".