2568423653 has 2 divisors, whose sum is σ = 2568423654. Its totient is φ = 2568423652.

The previous prime is 2568423647. The next prime is 2568423673. The reversal of 2568423653 is 3563248652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1730726404 + 837697249 = 41602^2 + 28943^2 .

It is a cyclic number.

It is not a de Polignac number, because 2568423653 - 2⁸ = 2568423397 is a prime.

It is a super-2 number, since 2×2568423653² = 13193600122579728818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568423623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284211826 + 1284211827.

It is an arithmetic number, because the mean of its divisors is an integer number (1284211827).

Almost surely, 2^2568423653 is an apocalyptic number.

It is an amenable number.

2568423653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568423653 is an equidigital number, since it uses as much as digits as its factorization.

2568423653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 44.

The square root of 2568423653 is about 50679.6177274454. The cubic root of 2568423653 is about 1369.4795566983.

The spelling of 2568423653 in words is "two billion, five hundred sixty-eight million, four hundred twenty-three thousand, six hundred fifty-three".