250545401 has 2 divisors, whose sum is σ = 250545402. Its totient is φ = 250545400.

The previous prime is 250545397. The next prime is 250545403. The reversal of 250545401 is 104545052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196140025 + 54405376 = 14005^2 + 7376^2 .

It is a cyclic number.

It is not a de Polignac number, because 250545401 - 2² = 250545397 is a prime.

Together with 250545403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (250545403) 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, 125272700 + 125272701.

It is an arithmetic number, because the mean of its divisors is an integer number (125272701).

Almost surely, 2^250545401 is an apocalyptic number.

It is an amenable number.

250545401 is a deficient number, since it is larger than the sum of its proper divisors (1).

250545401 is an equidigital number, since it uses as much as digits as its factorization.

250545401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 250545401 is about 15828.6259984877. The cubic root of 250545401 is about 630.4183003475.

The spelling of 250545401 in words is "two hundred fifty million, five hundred forty-five thousand, four hundred one".