250444661 has 8 divisors (see below), whose sum is σ = 252341760. Its totient is φ = 248553072.

The previous prime is 250444657. The next prime is 250444693. The reversal of 250444661 is 166444052.

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 250444661 - 2² = 250444657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250444651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141500 + ... + 143258.

It is an arithmetic number, because the mean of its divisors is an integer number (31542720).

Almost surely, 2^250444661 is an apocalyptic number.

It is an amenable number.

250444661 is a deficient number, since it is larger than the sum of its proper divisors (1897099).

250444661 is a wasteful number, since it uses less digits than its factorization.

250444661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 250444661 is about 15825.4434692997. The cubic root of 250444661 is about 630.3337955656. Note that the first 3 decimals are identical.

The spelling of 250444661 in words is "two hundred fifty million, four hundred forty-four thousand, six hundred sixty-one".