75125569 has 2 divisors, whose sum is σ = 75125570. Its totient is φ = 75125568.

The previous prime is 75125509. The next prime is 75125579. The reversal of 75125569 is 96552157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 22924944 = 7225^2 + 4788^2 .

It is a cyclic number.

It is not a de Polignac number, because 75125569 - 2¹⁹ = 74601281 is a prime.

It is a super-2 number, since 2×75125569² = 11287702235147522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75125509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37562784 + 37562785.

It is an arithmetic number, because the mean of its divisors is an integer number (37562785).

Almost surely, 2^75125569 is an apocalyptic number.

It is an amenable number.

75125569 is a deficient number, since it is larger than the sum of its proper divisors (1).

75125569 is an equidigital number, since it uses as much as digits as its factorization.

75125569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 40.

The square root of 75125569 is about 8667.5007355062. The cubic root of 75125569 is about 421.9515547511.

The spelling of 75125569 in words is "seventy-five million, one hundred twenty-five thousand, five hundred sixty-nine".