254423561 has 8 divisors (see below), whose sum is σ = 297532224. Its totient is φ = 213005520.

The previous prime is 254423557. The next prime is 254423563. The reversal of 254423561 is 165324452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 254423561 - 2² = 254423557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254423563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422330 + ... + 422931.

It is an arithmetic number, because the mean of its divisors is an integer number (37191528).

Almost surely, 2^254423561 is an apocalyptic number.

It is an amenable number.

254423561 is a deficient number, since it is larger than the sum of its proper divisors (43108663).

254423561 is an equidigital number, since it uses as much as digits as its factorization.

254423561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845311.

The product of its digits is 28800, while the sum is 32.

The square root of 254423561 is about 15950.6602057720. The cubic root of 254423561 is about 633.6543816101.

The spelling of 254423561 in words is "two hundred fifty-four million, four hundred twenty-three thousand, five hundred sixty-one".