251301201255 has 96 divisors (see below), whose sum is σ = 491447803392. Its totient is φ = 117865440000.

The previous prime is 251301201233. The next prime is 251301201271. The reversal of 251301201255 is 552102103152.

251301201255 is a `hidden beast` number, since 2 + 513 + 0 + 1 + 20 + 125 + 5 = 666.

It is not a de Polignac number, because 251301201255 - 2⁵ = 251301201223 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 3340000 + ... + 3414410.

It is an arithmetic number, because the mean of its divisors is an integer number (5119247952).

Almost surely, 2^251301201255 is an apocalyptic number.

251301201255 is a deficient number, since it is larger than the sum of its proper divisors (240146602137).

251301201255 is a wasteful number, since it uses less digits than its factorization.

251301201255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74709 (or 74706 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 251301201255 in words is "two hundred fifty-one billion, three hundred one million, two hundred one thousand, two hundred fifty-five".