254564641 has 4 divisors (see below), whose sum is σ = 267962800. Its totient is φ = 241166484.

The previous prime is 254564587. The next prime is 254564657. The reversal of 254564641 is 146465452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254564641 - 2¹¹ = 254562593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254564641.

It is not an unprimeable number, because it can be changed into a prime (254564441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6699051 + ... + 6699088.

It is an arithmetic number, because the mean of its divisors is an integer number (66990700).

Almost surely, 2^254564641 is an apocalyptic number.

It is an amenable number.

254564641 is a deficient number, since it is larger than the sum of its proper divisors (13398159).

254564641 is a wasteful number, since it uses less digits than its factorization.

254564641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13398158.

The product of its digits is 115200, while the sum is 37.

The square root of 254564641 is about 15955.0819803597. The cubic root of 254564641 is about 633.7714821927.

The spelling of 254564641 in words is "two hundred fifty-four million, five hundred sixty-four thousand, six hundred forty-one".