2257366655 has 4 divisors (see below), whose sum is σ = 2708839992. Its totient is φ = 1805893320.

The previous prime is 2257366651. The next prime is 2257366669. The reversal of 2257366655 is 5566637522.

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

It is not a de Polignac number, because 2257366655 - 2² = 2257366651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257366651) 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, 225736661 + ... + 225736670.

It is an arithmetic number, because the mean of its divisors is an integer number (677209998).

Almost surely, 2^2257366655 is an apocalyptic number.

2257366655 is a deficient number, since it is larger than the sum of its proper divisors (451473337).

2257366655 is an equidigital number, since it uses as much as digits as its factorization.

2257366655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451473336.

The product of its digits is 2268000, while the sum is 47.

The square root of 2257366655 is about 47511.7528091734. The cubic root of 2257366655 is about 1311.7992205196.

The spelling of 2257366655 in words is "two billion, two hundred fifty-seven million, three hundred sixty-six thousand, six hundred fifty-five".