250915969 has 2 divisors, whose sum is σ = 250915970. Its totient is φ = 250915968.

The previous prime is 250915943. The next prime is 250915979. The reversal of 250915969 is 969519052.

250915969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217415025 + 33500944 = 14745^2 + 5788^2 .

It is a cyclic number.

It is not a de Polignac number, because 250915969 - 2²⁵ = 217361537 is a prime.

It is a super-2 number, since 2×250915969² = 125917646998417922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (250915909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125457984 + 125457985.

It is an arithmetic number, because the mean of its divisors is an integer number (125457985).

Almost surely, 2^250915969 is an apocalyptic number.

It is an amenable number.

250915969 is a deficient number, since it is larger than the sum of its proper divisors (1).

250915969 is an equidigital number, since it uses as much as digits as its factorization.

250915969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 218700, while the sum is 46.

The square root of 250915969 is about 15840.3273009114. The cubic root of 250915969 is about 630.7289529846.

The spelling of 250915969 in words is "two hundred fifty million, nine hundred fifteen thousand, nine hundred sixty-nine".