625203517117 has 2 divisors, whose sum is σ = 625203517118. Its totient is φ = 625203517116.

The previous prime is 625203517063. The next prime is 625203517139. The reversal of 625203517117 is 711715302526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530815702041 + 94387815076 = 728571^2 + 307226^2 .

It is a cyclic number.

It is not a de Polignac number, because 625203517117 - 2⁷ = 625203516989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625203517117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625203517157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312601758558 + 312601758559.

It is an arithmetic number, because the mean of its divisors is an integer number (312601758559).

Almost surely, 2^625203517117 is an apocalyptic number.

It is an amenable number.

625203517117 is a deficient number, since it is larger than the sum of its proper divisors (1).

625203517117 is an equidigital number, since it uses as much as digits as its factorization.

625203517117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 625203517117 in words is "six hundred twenty-five billion, two hundred three million, five hundred seventeen thousand, one hundred seventeen".