250806401 has 16 divisors (see below), whose sum is σ = 261617664. Its totient is φ = 240274944.

The previous prime is 250806383. The next prime is 250806419. The reversal of 250806401 is 104608052.

It is an interprime number because it is at equal distance from previous prime (250806383) and next prime (250806419).

It is a cyclic number.

It is not a de Polignac number, because 250806401 - 2²² = 246612097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250806431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654656 + ... + 655038.

It is an arithmetic number, because the mean of its divisors is an integer number (16351104).

Almost surely, 2^250806401 is an apocalyptic number.

It is an amenable number.

250806401 is a deficient number, since it is larger than the sum of its proper divisors (10811263).

250806401 is a wasteful number, since it uses less digits than its factorization.

250806401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 250806401 is about 15836.8684088743. The cubic root of 250806401 is about 630.6371323752.

The spelling of 250806401 in words is "two hundred fifty million, eight hundred six thousand, four hundred one".