250565101 has 2 divisors, whose sum is σ = 250565102. Its totient is φ = 250565100.

The previous prime is 250565093. The next prime is 250565123. The reversal of 250565101 is 101565052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247307076 + 3258025 = 15726^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 250565101 - 2³ = 250565093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250563101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125282550 + 125282551.

It is an arithmetic number, because the mean of its divisors is an integer number (125282551).

Almost surely, 2^250565101 is an apocalyptic number.

It is an amenable number.

250565101 is a deficient number, since it is larger than the sum of its proper divisors (1).

250565101 is an equidigital number, since it uses as much as digits as its factorization.

250565101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 250565101 is about 15829.2482765291. The cubic root of 250565101 is about 630.4348228553.

The spelling of 250565101 in words is "two hundred fifty million, five hundred sixty-five thousand, one hundred one".