625222041173 has 2 divisors, whose sum is σ = 625222041174. Its totient is φ = 625222041172.

The previous prime is 625222041131. The next prime is 625222041179. The reversal of 625222041173 is 371140222526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409904696644 + 215317344529 = 640238^2 + 464023^2 .

It is a cyclic number.

It is not a de Polignac number, because 625222041173 - 2³⁰ = 624148299349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625222041179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312611020586 + 312611020587.

It is an arithmetic number, because the mean of its divisors is an integer number (312611020587).

Almost surely, 2^625222041173 is an apocalyptic number.

It is an amenable number.

625222041173 is a deficient number, since it is larger than the sum of its proper divisors (1).

625222041173 is an equidigital number, since it uses as much as digits as its factorization.

625222041173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 625222041173 its reverse (371140222526), we get a palindrome (996362263699).

The spelling of 625222041173 in words is "six hundred twenty-five billion, two hundred twenty-two million, forty-one thousand, one hundred seventy-three".