250421329 has 2 divisors, whose sum is σ = 250421330. Its totient is φ = 250421328.

The previous prime is 250421261. The next prime is 250421333. The reversal of 250421329 is 923124052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205262929 + 45158400 = 14327^2 + 6720^2 .

It is a cyclic number.

It is not a de Polignac number, because 250421329 - 2⁷ = 250421201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250421297 and 250421306.

It is not a weakly prime, because it can be changed into another prime (250421359) 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, 125210664 + 125210665.

It is an arithmetic number, because the mean of its divisors is an integer number (125210665).

Almost surely, 2^250421329 is an apocalyptic number.

It is an amenable number.

250421329 is a deficient number, since it is larger than the sum of its proper divisors (1).

250421329 is an equidigital number, since it uses as much as digits as its factorization.

250421329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 250421329 is about 15824.7062847940. The cubic root of 250421329 is about 630.3142205095.

The spelling of 250421329 in words is "two hundred fifty million, four hundred twenty-one thousand, three hundred twenty-nine".