2353681257 has 16 divisors (see below), whose sum is σ = 3228732480. Its totient is φ = 1524517632.

The previous prime is 2353681237. The next prime is 2353681261. The reversal of 2353681257 is 7521863532.

It is a happy number.

It is not a de Polignac number, because 2353681257 - 2⁶ = 2353681193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2353681217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65532 + ... + 94877.

It is an arithmetic number, because the mean of its divisors is an integer number (201795780).

Almost surely, 2^2353681257 is an apocalyptic number.

It is an amenable number.

2353681257 is a deficient number, since it is larger than the sum of its proper divisors (875051223).

2353681257 is a wasteful number, since it uses less digits than its factorization.

2353681257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160552.

The product of its digits is 302400, while the sum is 42.

The square root of 2353681257 is about 48514.7529829845. The cubic root of 2353681257 is about 1330.1967517543.

The spelling of 2353681257 in words is "two billion, three hundred fifty-three million, six hundred eighty-one thousand, two hundred fifty-seven".