425293907173 has 2 divisors, whose sum is σ = 425293907174. Its totient is φ = 425293907172.

The previous prime is 425293907069. The next prime is 425293907209. The reversal of 425293907173 is 371709392524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375895288609 + 49398618564 = 613103^2 + 222258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425293907173 is a prime.

It is a super-3 number, since 3×425293907173³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 425293907173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425294907173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212646953586 + 212646953587.

It is an arithmetic number, because the mean of its divisors is an integer number (212646953587).

Almost surely, 2^425293907173 is an apocalyptic number.

It is an amenable number.

425293907173 is a deficient number, since it is larger than the sum of its proper divisors (1).

425293907173 is an equidigital number, since it uses as much as digits as its factorization.

425293907173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 425293907173 in words is "four hundred twenty-five billion, two hundred ninety-three million, nine hundred seven thousand, one hundred seventy-three".