251280273233 has 12 divisors (see below), whose sum is σ = 288209357184. Its totient is φ = 218504583000.

The previous prime is 251280273227. The next prime is 251280273239. The reversal of 251280273233 is 332372082152.

251280273233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (251280273227) and next prime (251280273239).

It is not a de Polignac number, because 251280273233 - 2⁴ = 251280273217 is a prime.

It is a super-2 number, since 2×251280273233² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251280273239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45142793 + ... + 45148358.

It is an arithmetic number, because the mean of its divisors is an integer number (24017446432).

Almost surely, 2^251280273233 is an apocalyptic number.

251280273233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

251280273233 is a deficient number, since it is larger than the sum of its proper divisors (36929083951).

251280273233 is a wasteful number, since it uses less digits than its factorization.

251280273233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90291196 (or 90291185 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 251280273233 in words is "two hundred fifty-one billion, two hundred eighty million, two hundred seventy-three thousand, two hundred thirty-three".