250313661 has 48 divisors (see below), whose sum is σ = 414623664. Its totient is φ = 144156672.

The previous prime is 250313639. The next prime is 250313663. The reversal of 250313661 is 166313052.

It can be written as a sum of positive squares in 8 ways, for example, as 13461561 + 236852100 = 3669^2 + 15390^2 .

It is not a de Polignac number, because 250313661 - 2⁶ = 250313597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250313663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 630315 + ... + 630711.

It is an arithmetic number, because the mean of its divisors is an integer number (8637993).

Almost surely, 2^250313661 is an apocalyptic number.

It is an amenable number.

250313661 is a deficient number, since it is larger than the sum of its proper divisors (164310003).

250313661 is a wasteful number, since it uses less digits than its factorization.

250313661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 747 counting only the distinct ones).

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

The square root of 250313661 is about 15821.3040233730. The cubic root of 250313661 is about 630.2238735728.

The spelling of 250313661 in words is "two hundred fifty million, three hundred thirteen thousand, six hundred sixty-one".