254656563 has 32 divisors (see below), whose sum is σ = 409497600. Its totient is φ = 137513376.

The previous prime is 254656513. The next prime is 254656603. The reversal of 254656563 is 365656452.

254656563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 254656563 - 2¹⁰ = 254655539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254656513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296028 + ... + 296886.

It is an arithmetic number, because the mean of its divisors is an integer number (12796800).

Almost surely, 2^254656563 is an apocalyptic number.

254656563 is a deficient number, since it is larger than the sum of its proper divisors (154841037).

254656563 is a wasteful number, since it uses less digits than its factorization.

254656563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631.

The product of its digits is 648000, while the sum is 42.

The square root of 254656563 is about 15957.9623699268. The cubic root of 254656563 is about 633.8477569013.

The spelling of 254656563 in words is "two hundred fifty-four million, six hundred fifty-six thousand, five hundred sixty-three".