251056233 has 16 divisors (see below), whose sum is σ = 376646400. Its totient is φ = 165250800.

The previous prime is 251056123. The next prime is 251056241. The reversal of 251056233 is 332650152.

251056233 is a `hidden beast` number, since 25 + 10 + 5 + 623 + 3 = 666.

It is not a de Polignac number, because 251056233 - 2¹⁴ = 251039849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 251056197 and 251056206.

It is not an unprimeable number, because it can be changed into a prime (251056933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56718 + ... + 60983.

It is an arithmetic number, because the mean of its divisors is an integer number (23540400).

Almost surely, 2^251056233 is an apocalyptic number.

It is an amenable number.

251056233 is a deficient number, since it is larger than the sum of its proper divisors (125590167).

251056233 is a wasteful number, since it uses less digits than its factorization.

251056233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117789 (or 117783 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 251056233 is about 15844.7541161105. The cubic root of 251056233 is about 630.8464585735.

The spelling of 251056233 in words is "two hundred fifty-one million, fifty-six thousand, two hundred thirty-three".