254651 has 4 divisors (see below), whose sum is σ = 260904. Its totient is φ = 248400.

The previous prime is 254647. The next prime is 254659. The reversal of 254651 is 156452.

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

It is a cyclic number.

It is not a de Polignac number, because 254651 - 2² = 254647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254659) 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, 3065 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (65226).

2²⁵⁴⁶⁵¹ is an apocalyptic number.

254651 is a deficient number, since it is larger than the sum of its proper divisors (6253).

254651 is an equidigital number, since it uses as much as digits as its factorization.

254651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252.

The product of its digits is 1200, while the sum is 23.

The square root of 254651 is about 504.6295671084. The cubic root of 254651 is about 63.3843141377.

The spelling of 254651 in words is "two hundred fifty-four thousand, six hundred fifty-one".