2257751231 has 4 divisors (see below), whose sum is σ = 2355914352. Its totient is φ = 2159588112.

The previous prime is 2257751201. The next prime is 2257751233. The reversal of 2257751231 is 1321577522.

2257751231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2257751231 - 2¹⁴ = 2257734847 is a prime.

It is a super-2 number, since 2×2257751231² = 10194881242164030722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2257751191 and 2257751200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257751233) 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, 49081526 + ... + 49081571.

It is an arithmetic number, because the mean of its divisors is an integer number (588978588).

Almost surely, 2^2257751231 is an apocalyptic number.

2257751231 is a deficient number, since it is larger than the sum of its proper divisors (98163121).

2257751231 is an equidigital number, since it uses as much as digits as its factorization.

2257751231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98163120.

The product of its digits is 29400, while the sum is 35.

The square root of 2257751231 is about 47515.7998038547. The cubic root of 2257751231 is about 1311.8737111287.

The spelling of 2257751231 in words is "two billion, two hundred fifty-seven million, seven hundred fifty-one thousand, two hundred thirty-one".