2562253891 has 2 divisors, whose sum is σ = 2562253892. Its totient is φ = 2562253890.

The previous prime is 2562253817. The next prime is 2562253913. The reversal of 2562253891 is 1983522652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2562253891 - 2³¹ = 414770243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2562253801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281126945 + 1281126946.

It is an arithmetic number, because the mean of its divisors is an integer number (1281126946).

Almost surely, 2^2562253891 is an apocalyptic number.

2562253891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2562253891 is an equidigital number, since it uses as much as digits as its factorization.

2562253891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 2562253891 is about 50618.7108784884. The cubic root of 2562253891 is about 1368.3821082649.

The spelling of 2562253891 in words is "two billion, five hundred sixty-two million, two hundred fifty-three thousand, eight hundred ninety-one".