2235257857 has 4 divisors (see below), whose sum is σ = 2554580416. Its totient is φ = 1915935300.

The previous prime is 2235257839. The next prime is 2235257861. The reversal of 2235257857 is 7587525322.

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 2235257857 - 2¹⁹ = 2234733569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2235257807) 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, 159661269 + ... + 159661282.

It is an arithmetic number, because the mean of its divisors is an integer number (638645104).

Almost surely, 2^2235257857 is an apocalyptic number.

It is an amenable number.

2235257857 is a deficient number, since it is larger than the sum of its proper divisors (319322559).

2235257857 is an equidigital number, since it uses as much as digits as its factorization.

2235257857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319322558.

The product of its digits is 1176000, while the sum is 46.

The square root of 2235257857 is about 47278.5136927971. The cubic root of 2235257857 is about 1307.5025464892.

The spelling of 2235257857 in words is "two billion, two hundred thirty-five million, two hundred fifty-seven thousand, eight hundred fifty-seven".