2568460655 has 4 divisors (see below), whose sum is σ = 3082152792. Its totient is φ = 2054768520.

The previous prime is 2568460651. The next prime is 2568460667. The reversal of 2568460655 is 5560648652.

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

It is not a de Polignac number, because 2568460655 - 2² = 2568460651 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 (2568460651) 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, 256846061 + ... + 256846070.

It is an arithmetic number, because the mean of its divisors is an integer number (770538198).

Almost surely, 2^2568460655 is an apocalyptic number.

2568460655 is a deficient number, since it is larger than the sum of its proper divisors (513692137).

2568460655 is an equidigital number, since it uses as much as digits as its factorization.

2568460655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513692136.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The square root of 2568460655 is about 50679.9827841328. The cubic root of 2568460655 is about 1369.4861331367.

The spelling of 2568460655 in words is "two billion, five hundred sixty-eight million, four hundred sixty thousand, six hundred fifty-five".