254519961 has 4 divisors (see below), whose sum is σ = 339359952. Its totient is φ = 169679972.

The previous prime is 254519933. The next prime is 254519983. The reversal of 254519961 is 169915452.

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 254519961 - 2¹⁰ = 254518937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254519261) 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, 42419991 + ... + 42419996.

It is an arithmetic number, because the mean of its divisors is an integer number (84839988).

Almost surely, 2^254519961 is an apocalyptic number.

It is an amenable number.

254519961 is a deficient number, since it is larger than the sum of its proper divisors (84839991).

254519961 is an equidigital number, since it uses as much as digits as its factorization.

254519961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84839990.

The product of its digits is 97200, while the sum is 42.

The square root of 254519961 is about 15953.6817380817. The cubic root of 254519961 is about 633.7344011504.

The spelling of 254519961 in words is "two hundred fifty-four million, five hundred nineteen thousand, nine hundred sixty-one".