250355138 has 32 divisors (see below), whose sum is σ = 429466752. Its totient is φ = 108345600.

The previous prime is 250355137. The next prime is 250355167. The reversal of 250355138 is 831553052.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250355137) 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, 120920 + ... + 122972.

It is an arithmetic number, because the mean of its divisors is an integer number (13420836).

Almost surely, 2^250355138 is an apocalyptic number.

250355138 is a deficient number, since it is larger than the sum of its proper divisors (179111614).

250355138 is a wasteful number, since it uses less digits than its factorization.

250355138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 250355138 is about 15822.6147649496. The cubic root of 250355138 is about 630.2586810378.

The spelling of 250355138 in words is "two hundred fifty million, three hundred fifty-five thousand, one hundred thirty-eight".