250890401 has 2 divisors, whose sum is σ = 250890402. Its totient is φ = 250890400.

The previous prime is 250890389. The next prime is 250890407. The reversal of 250890401 is 104098052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223054225 + 27836176 = 14935^2 + 5276^2 .

It is a cyclic number.

It is not a de Polignac number, because 250890401 - 2¹⁰ = 250889377 is a prime.

It is equal to p_13725362 and since 250890401 and 13725362 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (250890407) 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, 125445200 + 125445201.

It is an arithmetic number, because the mean of its divisors is an integer number (125445201).

Almost surely, 2^250890401 is an apocalyptic number.

It is an amenable number.

250890401 is a deficient number, since it is larger than the sum of its proper divisors (1).

250890401 is an equidigital number, since it uses as much as digits as its factorization.

250890401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 250890401 is about 15839.5202263200. The cubic root of 250890401 is about 630.7075287793.

The spelling of 250890401 in words is "two hundred fifty million, eight hundred ninety thousand, four hundred one".