254200561 has 4 divisors (see below), whose sum is σ = 258996852. Its totient is φ = 249404272.

The previous prime is 254200543. The next prime is 254200567. The reversal of 254200561 is 165002452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 136890000 + 117310561 = 11700^2 + 10831^2 .

It is a cyclic number.

It is not a de Polignac number, because 254200561 - 2⁹ = 254200049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254200567) 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, 2398066 + ... + 2398171.

It is an arithmetic number, because the mean of its divisors is an integer number (64749213).

Almost surely, 2^254200561 is an apocalyptic number.

It is an amenable number.

254200561 is a deficient number, since it is larger than the sum of its proper divisors (4796291).

254200561 is an equidigital number, since it uses as much as digits as its factorization.

254200561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796290.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 254200561 is about 15943.6683670980. The cubic root of 254200561 is about 633.4691966757.

The spelling of 254200561 in words is "two hundred fifty-four million, two hundred thousand, five hundred sixty-one".