2257742353 has 4 divisors (see below), whose sum is σ = 2355905088. Its totient is φ = 2159579620.

The previous prime is 2257742323. The next prime is 2257742359. The reversal of 2257742353 is 3532477522.

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 2257742353 - 2⁹ = 2257741841 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2257742359) 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, 49081333 + ... + 49081378.

It is an arithmetic number, because the mean of its divisors is an integer number (588976272).

Almost surely, 2^2257742353 is an apocalyptic number.

2257742353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2257742353 is a deficient number, since it is larger than the sum of its proper divisors (98162735).

2257742353 is an equidigital number, since it uses as much as digits as its factorization.

2257742353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98162734.

The product of its digits is 352800, while the sum is 40.

The square root of 2257742353 is about 47515.7063822059. The cubic root of 2257742353 is about 1311.8719915961.

The spelling of 2257742353 in words is "two billion, two hundred fifty-seven million, seven hundred forty-two thousand, three hundred fifty-three".