2257135757 has 4 divisors (see below), whose sum is σ = 2260142016. Its totient is φ = 2254129500.

The previous prime is 2257135721. The next prime is 2257135759. The reversal of 2257135757 is 7575317522.

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 2257135757 - 2¹⁴ = 2257119373 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 (2257135759) 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, 1502003 + ... + 1503504.

It is an arithmetic number, because the mean of its divisors is an integer number (565035504).

Almost surely, 2^2257135757 is an apocalyptic number.

It is an amenable number.

2257135757 is a deficient number, since it is larger than the sum of its proper divisors (3006259).

2257135757 is an equidigital number, since it uses as much as digits as its factorization.

2257135757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006258.

The product of its digits is 514500, while the sum is 44.

The square root of 2257135757 is about 47509.3228429958. The cubic root of 2257135757 is about 1311.7544925703.

The spelling of 2257135757 in words is "two billion, two hundred fifty-seven million, one hundred thirty-five thousand, seven hundred fifty-seven".