75256969 has 2 divisors, whose sum is σ = 75256970. Its totient is φ = 75256968.

The previous prime is 75256921. The next prime is 75256999. The reversal of 75256969 is 96965257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61418569 + 13838400 = 7837^2 + 3720^2 .

It is a cyclic number.

It is not a de Polignac number, because 75256969 - 2⁹ = 75256457 is a prime.

It is a super-2 number, since 2×75256969² = 11327222766133922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75256999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37628484 + 37628485.

It is an arithmetic number, because the mean of its divisors is an integer number (37628485).

Almost surely, 2^75256969 is an apocalyptic number.

It is an amenable number.

75256969 is a deficient number, since it is larger than the sum of its proper divisors (1).

75256969 is an equidigital number, since it uses as much as digits as its factorization.

75256969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 49.

The square root of 75256969 is about 8675.0774636311. The cubic root of 75256969 is about 422.1974192904.

The spelling of 75256969 in words is "seventy-five million, two hundred fifty-six thousand, nine hundred sixty-nine".