250640633 has 8 divisors (see below), whose sum is σ = 252917280. Its totient is φ = 248374080.

The previous prime is 250640603. The next prime is 250640651. The reversal of 250640633 is 336046052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 250640633 - 2⁶ = 250640569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 250640596 and 250640605.

It is not an unprimeable number, because it can be changed into a prime (250640603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52673 + ... + 57233.

It is an arithmetic number, because the mean of its divisors is an integer number (31614660).

Almost surely, 2^250640633 is an apocalyptic number.

It is an amenable number.

250640633 is a deficient number, since it is larger than the sum of its proper divisors (2276647).

250640633 is a wasteful number, since it uses less digits than its factorization.

250640633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 250640633 is about 15831.6339333627. The cubic root of 250640633 is about 630.4981639709.

Adding to 250640633 its reverse (336046052), we get a palindrome (586686685).

The spelling of 250640633 in words is "two hundred fifty million, six hundred forty thousand, six hundred thirty-three".