2257355431 has 4 divisors (see below), whose sum is σ = 2257983832. Its totient is φ = 2256727032.

The previous prime is 2257355423. The next prime is 2257355449. The reversal of 2257355431 is 1345537522.

It is a happy number.

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 2257355431 - 2³ = 2257355423 is a prime.

It is a super-2 number, since 2×2257355431² = 10191307083730391522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257355831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308781 + ... + 316006.

It is an arithmetic number, because the mean of its divisors is an integer number (564495958).

Almost surely, 2^2257355431 is an apocalyptic number.

2257355431 is a deficient number, since it is larger than the sum of its proper divisors (628401).

2257355431 is an equidigital number, since it uses as much as digits as its factorization.

2257355431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628400.

The product of its digits is 126000, while the sum is 37.

The square root of 2257355431 is about 47511.6346908839. The cubic root of 2257355431 is about 1311.7970463552.

The spelling of 2257355431 in words is "two billion, two hundred fifty-seven million, three hundred fifty-five thousand, four hundred thirty-one".