254720380631 has 2 divisors, whose sum is σ = 254720380632. Its totient is φ = 254720380630.

The previous prime is 254720380613. The next prime is 254720380639. The reversal of 254720380631 is 136083027452.

Together with previous prime (254720380613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254720380631 - 2⁶ = 254720380567 is a prime.

It is a super-2 number, since 2×254720380631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254720380639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127360190315 + 127360190316.

It is an arithmetic number, because the mean of its divisors is an integer number (127360190316).

Almost surely, 2^254720380631 is an apocalyptic number.

254720380631 is a deficient number, since it is larger than the sum of its proper divisors (1).

254720380631 is an equidigital number, since it uses as much as digits as its factorization.

254720380631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 254720380631 in words is "two hundred fifty-four billion, seven hundred twenty million, three hundred eighty thousand, six hundred thirty-one".