625635536573 has 2 divisors, whose sum is σ = 625635536574. Its totient is φ = 625635536572.

The previous prime is 625635536551. The next prime is 625635536657. The reversal of 625635536573 is 375635536526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 554686821529 + 70948715044 = 744773^2 + 266362^2 .

It is a cyclic number.

It is not a de Polignac number, because 625635536573 - 2¹⁰ = 625635535549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625635536503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312817768286 + 312817768287.

It is an arithmetic number, because the mean of its divisors is an integer number (312817768287).

Almost surely, 2^625635536573 is an apocalyptic number.

It is an amenable number.

625635536573 is a deficient number, since it is larger than the sum of its proper divisors (1).

625635536573 is an equidigital number, since it uses as much as digits as its factorization.

625635536573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030000, while the sum is 56.

The spelling of 625635536573 in words is "six hundred twenty-five billion, six hundred thirty-five million, five hundred thirty-six thousand, five hundred seventy-three".