250551401 has 2 divisors, whose sum is σ = 250551402. Its totient is φ = 250551400.

The previous prime is 250551373. The next prime is 250551439. The reversal of 250551401 is 104155052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222725776 + 27825625 = 14924^2 + 5275^2 .

It is a cyclic number.

It is not a de Polignac number, because 250551401 - 2⁶ = 250551337 is a prime.

It is not a weakly prime, because it can be changed into another prime (250551481) 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 as a sum of consecutive naturals, namely, 125275700 + 125275701.

It is an arithmetic number, because the mean of its divisors is an integer number (125275701).

Almost surely, 2^250551401 is an apocalyptic number.

It is an amenable number.

250551401 is a deficient number, since it is larger than the sum of its proper divisors (1).

250551401 is an equidigital number, since it uses as much as digits as its factorization.

250551401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 250551401 is about 15828.8155273855. The cubic root of 250551401 is about 630.4233326751.

The spelling of 250551401 in words is "two hundred fifty million, five hundred fifty-one thousand, four hundred one".