250420231 has 2 divisors, whose sum is σ = 250420232. Its totient is φ = 250420230.

The previous prime is 250420229. The next prime is 250420237. The reversal of 250420231 is 132024052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 250420231 - 2¹ = 250420229 is a prime.

It is a super-2 number, since 2×250420231² = 125420584188186722, which contains 22 as substring.

Together with 250420229, it forms a pair of twin primes.

It is equal to p_13701070 and since 250420231 and 13701070 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 250420199 and 250420208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250420237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125210115 + 125210116.

It is an arithmetic number, because the mean of its divisors is an integer number (125210116).

Almost surely, 2^250420231 is an apocalyptic number.

250420231 is a deficient number, since it is larger than the sum of its proper divisors (1).

250420231 is an equidigital number, since it uses as much as digits as its factorization.

250420231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 250420231 is about 15824.6715921690. The cubic root of 250420231 is about 630.3132992807.

Adding to 250420231 its reverse (132024052), we get a palindrome (382444283).

The spelling of 250420231 in words is "two hundred fifty million, four hundred twenty thousand, two hundred thirty-one".