625433569 has 2 divisors, whose sum is σ = 625433570. Its totient is φ = 625433568.

The previous prime is 625433561. The next prime is 625433617. The reversal of 625433569 is 965334526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501222544 + 124211025 = 22388^2 + 11145^2 .

It is a cyclic number.

It is not a de Polignac number, because 625433569 - 2³ = 625433561 is a prime.

It is a super-2 number, since 2×625433569² = 782334298464155522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (625433561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312716784 + 312716785.

It is an arithmetic number, because the mean of its divisors is an integer number (312716785).

Almost surely, 2^625433569 is an apocalyptic number.

It is an amenable number.

625433569 is a deficient number, since it is larger than the sum of its proper divisors (1).

625433569 is an equidigital number, since it uses as much as digits as its factorization.

625433569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 43.

The square root of 625433569 is about 25008.6698766648. The cubic root of 625433569 is about 855.1856323224.

The spelling of 625433569 in words is "six hundred twenty-five million, four hundred thirty-three thousand, five hundred sixty-nine".