255374014581 has 24 divisors (see below), whose sum is σ = 421583938880. Its totient is φ = 145923114816.

The previous prime is 255374014573. The next prime is 255374014607. The reversal of 255374014581 is 185410473552.

255374014581 is a `hidden beast` number, since 2 + 5 + 53 + 7 + 4 + 0 + 14 + 581 = 666.

It is not a de Polignac number, because 255374014581 - 2³ = 255374014573 is a prime.

It is a super-3 number, since 3×255374014581³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255374014561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2737401 + ... + 2829153.

Almost surely, 2^255374014581 is an apocalyptic number.

255374014581 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255374014581 is a deficient number, since it is larger than the sum of its proper divisors (166209924299).

255374014581 is a wasteful number, since it uses less digits than its factorization.

255374014581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135945 (or 135942 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 255374014581 in words is "two hundred fifty-five billion, three hundred seventy-four million, fourteen thousand, five hundred eighty-one".