625433617 has 2 divisors, whose sum is σ = 625433618. Its totient is φ = 625433616.

The previous prime is 625433569. The next prime is 625433647. The reversal of 625433617 is 716334526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567916561 + 57517056 = 23831^2 + 7584^2 .

It is a cyclic number.

It is not a de Polignac number, because 625433617 - 2⁷ = 625433489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (625433647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312716808 + 312716809.

It is an arithmetic number, because the mean of its divisors is an integer number (312716809).

Almost surely, 2^625433617 is an apocalyptic number.

It is an amenable number.

625433617 is a deficient number, since it is larger than the sum of its proper divisors (1).

625433617 is an equidigital number, since it uses as much as digits as its factorization.

625433617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 625433617 is about 25008.6708363319. The cubic root of 625433617 is about 855.1856541999.

Subtracting 625433617 from its reverse (716334526), we obtain a palindrome (90900909).

The spelling of 625433617 in words is "six hundred twenty-five million, four hundred thirty-three thousand, six hundred seventeen".