74252569 has 2 divisors, whose sum is σ = 74252570. Its totient is φ = 74252568.

The previous prime is 74252567. The next prime is 74252573. The reversal of 74252569 is 96525247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67043344 + 7209225 = 8188^2 + 2685^2 .

It is a cyclic number.

It is not a de Polignac number, because 74252569 - 2¹ = 74252567 is a prime.

It is a super-2 number, since 2×74252569² = 11026888006199522, which contains 22 as substring.

Together with 74252567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (74252561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37126284 + 37126285.

It is an arithmetic number, because the mean of its divisors is an integer number (37126285).

Almost surely, 2^74252569 is an apocalyptic number.

It is an amenable number.

74252569 is a deficient number, since it is larger than the sum of its proper divisors (1).

74252569 is an equidigital number, since it uses as much as digits as its factorization.

74252569 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 74252569 is about 8616.9930370170. The cubic root of 74252569 is about 420.3107469761.

The spelling of 74252569 in words is "seventy-four million, two hundred fifty-two thousand, five hundred sixty-nine".