251066232 has 24 divisors (see below), whose sum is σ = 679971240. Its totient is φ = 83688720.

The previous prime is 251066227. The next prime is 251066261. The reversal of 251066232 is 232660152.

251066232 is a `hidden beast` number, since 25 + 10 + 6 + 623 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 251066196 and 251066205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1743444 + ... + 1743587.

It is an arithmetic number, because the mean of its divisors is an integer number (28332135).

Almost surely, 2^251066232 is an apocalyptic number.

It is an amenable number.

251066232 is an abundant number, since it is smaller than the sum of its proper divisors (428905008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251066232 is a wasteful number, since it uses less digits than its factorization.

251066232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487043 (or 3487036 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 251066232 is about 15845.0696432676. The cubic root of 251066232 is about 630.8548335232.

The spelling of 251066232 in words is "two hundred fifty-one million, sixty-six thousand, two hundred thirty-two".