625204717 has 2 divisors, whose sum is σ = 625204718. Its totient is φ = 625204716.

The previous prime is 625204703. The next prime is 625204729. The reversal of 625204717 is 717402526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616330276 + 8874441 = 24826^2 + 2979^2 .

It is a cyclic number.

It is not a de Polignac number, because 625204717 - 2¹⁹ = 624680429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625204117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312602358 + 312602359.

It is an arithmetic number, because the mean of its divisors is an integer number (312602359).

Almost surely, 2^625204717 is an apocalyptic number.

It is an amenable number.

625204717 is a deficient number, since it is larger than the sum of its proper divisors (1).

625204717 is an equidigital number, since it uses as much as digits as its factorization.

625204717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 625204717 is about 25004.0940047825. The cubic root of 625204717 is about 855.0813127870.

The spelling of 625204717 in words is "six hundred twenty-five million, two hundred four thousand, seven hundred seventeen".