254556251 has 2 divisors, whose sum is σ = 254556252. Its totient is φ = 254556250.

The previous prime is 254556199. The next prime is 254556257. The reversal of 254556251 is 152655452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254556251 - 2¹⁸ = 254294107 is a prime.

It is not a weakly prime, because it can be changed into another prime (254556257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127278125 + 127278126.

It is an arithmetic number, because the mean of its divisors is an integer number (127278126).

Almost surely, 2^254556251 is an apocalyptic number.

254556251 is a deficient number, since it is larger than the sum of its proper divisors (1).

254556251 is an equidigital number, since it uses as much as digits as its factorization.

254556251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60000, while the sum is 35.

The square root of 254556251 is about 15954.8190525621. The cubic root of 254556251 is about 633.7645194541.

The spelling of 254556251 in words is "two hundred fifty-four million, five hundred fifty-six thousand, two hundred fifty-one".