250251401 has 2 divisors, whose sum is σ = 250251402. Its totient is φ = 250251400.

The previous prime is 250251389. The next prime is 250251433. The reversal of 250251401 is 104152052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217533001 + 32718400 = 14749^2 + 5720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250251401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (250253401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125125700 + 125125701.

It is an arithmetic number, because the mean of its divisors is an integer number (125125701).

Almost surely, 2^250251401 is an apocalyptic number.

It is an amenable number.

250251401 is a deficient number, since it is larger than the sum of its proper divisors (1).

250251401 is an equidigital number, since it uses as much as digits as its factorization.

250251401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 250251401 is about 15819.3363008693. The cubic root of 250251401 is about 630.1716178125.

The spelling of 250251401 in words is "two hundred fifty million, two hundred fifty-one thousand, four hundred one".