250661133 has 12 divisors (see below), whose sum is σ = 373746048. Its totient is φ = 161716680.

The previous prime is 250661119. The next prime is 250661149. The reversal of 250661133 is 331166052.

250661133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250661133 - 2⁵ = 250661101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250661097 and 250661106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250661183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448935 + ... + 449492.

It is an arithmetic number, because the mean of its divisors is an integer number (31145504).

Almost surely, 2^250661133 is an apocalyptic number.

It is an amenable number.

250661133 is a deficient number, since it is larger than the sum of its proper divisors (123084915).

250661133 is a wasteful number, since it uses less digits than its factorization.

250661133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898464 (or 898461 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 250661133 is about 15832.2813580356. The cubic root of 250661133 is about 630.5153530699.

The spelling of 250661133 in words is "two hundred fifty million, six hundred sixty-one thousand, one hundred thirty-three".