75265249 has 2 divisors, whose sum is σ = 75265250. Its totient is φ = 75265248.

The previous prime is 75265219. The next prime is 75265261. The reversal of 75265249 is 94256257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 21095649 = 7360^2 + 4593^2 .

It is an emirp because it is prime and its reverse (94256257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75265249 - 2¹⁷ = 75134177 is a prime.

It is not a weakly prime, because it can be changed into another prime (75265219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37632624 + 37632625.

It is an arithmetic number, because the mean of its divisors is an integer number (37632625).

Almost surely, 2^75265249 is an apocalyptic number.

It is an amenable number.

75265249 is a deficient number, since it is larger than the sum of its proper divisors (1).

75265249 is an equidigital number, since it uses as much as digits as its factorization.

75265249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 75265249 is about 8675.5546796732. The cubic root of 75265249 is about 422.2129025362.

The spelling of 75265249 in words is "seventy-five million, two hundred sixty-five thousand, two hundred forty-nine".