2265407857 has 2 divisors, whose sum is σ = 2265407858. Its totient is φ = 2265407856.

The previous prime is 2265407831. The next prime is 2265407873. The reversal of 2265407857 is 7587045622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2082644496 + 182763361 = 45636^2 + 13519^2 .

It is a cyclic number.

It is not a de Polignac number, because 2265407857 - 2¹⁵ = 2265375089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2265407887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132703928 + 1132703929.

It is an arithmetic number, because the mean of its divisors is an integer number (1132703929).

Almost surely, 2^2265407857 is an apocalyptic number.

It is an amenable number.

2265407857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265407857 is an equidigital number, since it uses as much as digits as its factorization.

2265407857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 46.

The square root of 2265407857 is about 47596.3008751731. The cubic root of 2265407857 is about 1313.3550070647.

The spelling of 2265407857 in words is "two billion, two hundred sixty-five million, four hundred seven thousand, eight hundred fifty-seven".