254401863 has 16 divisors (see below), whose sum is σ = 344547840. Its totient is φ = 166948704.

The previous prime is 254401859. The next prime is 254401867. The reversal of 254401863 is 368104452.

It is an interprime number because it is at equal distance from previous prime (254401859) and next prime (254401867).

It is not a de Polignac number, because 254401863 - 2² = 254401859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254401867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51078 + ... + 55836.

It is an arithmetic number, because the mean of its divisors is an integer number (21534240).

Almost surely, 2^254401863 is an apocalyptic number.

254401863 is a deficient number, since it is larger than the sum of its proper divisors (90145977).

254401863 is a wasteful number, since it uses less digits than its factorization.

254401863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 254401863 is about 15949.9800313355. The cubic root of 254401863 is about 633.6363677863.

The spelling of 254401863 in words is "two hundred fifty-four million, four hundred one thousand, eight hundred sixty-three".