254220251 has 4 divisors (see below), whose sum is σ = 255340392. Its totient is φ = 253100112.

The previous prime is 254220233. The next prime is 254220269. The reversal of 254220251 is 152022452.

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

It is an interprime number because it is at equal distance from previous prime (254220233) and next prime (254220269).

It is a cyclic number.

It is not a de Polignac number, because 254220251 - 2¹⁴ = 254203867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254220151) 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, 559730 + ... + 560183.

It is an arithmetic number, because the mean of its divisors is an integer number (63835098).

Almost surely, 2^254220251 is an apocalyptic number.

254220251 is a deficient number, since it is larger than the sum of its proper divisors (1120141).

254220251 is a wasteful number, since it uses less digits than its factorization.

254220251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120140.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 254220251 is about 15944.2858416425. The cubic root of 254220251 is about 633.4855521162.

The spelling of 254220251 in words is "two hundred fifty-four million, two hundred twenty thousand, two hundred fifty-one".