625700443217 has 2 divisors, whose sum is σ = 625700443218. Its totient is φ = 625700443216.

The previous prime is 625700443211. The next prime is 625700443243. The reversal of 625700443217 is 712344007526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624694221376 + 1006221841 = 790376^2 + 31721^2 .

It is a cyclic number.

It is not a de Polignac number, because 625700443217 - 2²⁰ = 625699394641 is a prime.

It is not a weakly prime, because it can be changed into another prime (625700443211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312850221608 + 312850221609.

It is an arithmetic number, because the mean of its divisors is an integer number (312850221609).

Almost surely, 2^625700443217 is an apocalyptic number.

It is an amenable number.

625700443217 is a deficient number, since it is larger than the sum of its proper divisors (1).

625700443217 is an equidigital number, since it uses as much as digits as its factorization.

625700443217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 625700443217 in words is "six hundred twenty-five billion, seven hundred million, four hundred forty-three thousand, two hundred seventeen".