254880221 has 4 divisors (see below), whose sum is σ = 260807712. Its totient is φ = 248952732.

The previous prime is 254880179. The next prime is 254880229. The reversal of 254880221 is 122088452.

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 a de Polignac number, because none of the positive numbers 2^k-254880221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254880229) 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, 2963681 + ... + 2963766.

It is an arithmetic number, because the mean of its divisors is an integer number (65201928).

Almost surely, 2^254880221 is an apocalyptic number.

It is an amenable number.

254880221 is a deficient number, since it is larger than the sum of its proper divisors (5927491).

254880221 is an equidigital number, since it uses as much as digits as its factorization.

254880221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927490.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 254880221 is about 15964.9685561858. The cubic root of 254880221 is about 634.0332664065.

The spelling of 254880221 in words is "two hundred fifty-four million, eight hundred eighty thousand, two hundred twenty-one".