250512569 has 2 divisors, whose sum is σ = 250512570. Its totient is φ = 250512568.

The previous prime is 250512553. The next prime is 250512571. The reversal of 250512569 is 965215052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191407225 + 59105344 = 13835^2 + 7688^2 .

It is a cyclic number.

It is not a de Polignac number, because 250512569 - 2⁴ = 250512553 is a prime.

It is a super-2 number, since 2×250512569² = 125513094453959522, which contains 22 as substring.

Together with 250512571, 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 (250512529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125256284 + 125256285.

It is an arithmetic number, because the mean of its divisors is an integer number (125256285).

Almost surely, 2^250512569 is an apocalyptic number.

It is an amenable number.

250512569 is a deficient number, since it is larger than the sum of its proper divisors (1).

250512569 is an equidigital number, since it uses as much as digits as its factorization.

250512569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 250512569 is about 15827.5888561714. The cubic root of 250512569 is about 630.3907620281.

The spelling of 250512569 in words is "two hundred fifty million, five hundred twelve thousand, five hundred sixty-nine".