250016401 has 8 divisors (see below), whose sum is σ = 257077800. Its totient is φ = 243000960.

The previous prime is 250016387. The next prime is 250016407. The reversal of 250016401 is 104610052.

It can be written as a sum of positive squares in 4 ways, for example, as 5875776 + 244140625 = 2424^2 + 15625^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250016401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250016407) 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, 306 + ... + 22363.

It is an arithmetic number, because the mean of its divisors is an integer number (32134725).

Almost surely, 2^250016401 is an apocalyptic number.

It is an amenable number.

250016401 is a deficient number, since it is larger than the sum of its proper divisors (7061399).

250016401 is a wasteful number, since it uses less digits than its factorization.

250016401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 250016401 is about 15811.9069374949. The cubic root of 250016401 is about 629.9743006230.

Adding to 250016401 its reverse (104610052), we get a palindrome (354626453).

The spelling of 250016401 in words is "two hundred fifty million, sixteen thousand, four hundred one".