456537569 has 2 divisors, whose sum is σ = 456537570. Its totient is φ = 456537568.

The previous prime is 456537563. The next prime is 456537619. The reversal of 456537569 is 965735654.

It is a happy number.

It is an a-pointer prime, because the next prime (456537619) can be obtained adding 456537569 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378886225 + 77651344 = 19465^2 + 8812^2 .

It is a cyclic number.

It is not a de Polignac number, because 456537569 - 2⁴ = 456537553 is a prime.

It is a super-2 number, since 2×456537569² = 416853103816859522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (456537563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228268784 + 228268785.

It is an arithmetic number, because the mean of its divisors is an integer number (228268785).

Almost surely, 2^456537569 is an apocalyptic number.

It is an amenable number.

456537569 is a deficient number, since it is larger than the sum of its proper divisors (1).

456537569 is an equidigital number, since it uses as much as digits as its factorization.

456537569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402000, while the sum is 50.

The square root of 456537569 is about 21366.7397840663. The cubic root of 456537569 is about 770.0025687214.

The spelling of 456537569 in words is "four hundred fifty-six million, five hundred thirty-seven thousand, five hundred sixty-nine".