425818597 has 2 divisors, whose sum is σ = 425818598. Its totient is φ = 425818596.

The previous prime is 425818537. The next prime is 425818639. The reversal of 425818597 is 795818524.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414163201 + 11655396 = 20351^2 + 3414^2 .

It is a cyclic number.

It is not a de Polignac number, because 425818597 - 2²³ = 417429989 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425818597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425818537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212909298 + 212909299.

It is an arithmetic number, because the mean of its divisors is an integer number (212909299).

Almost surely, 2^425818597 is an apocalyptic number.

It is an amenable number.

425818597 is a deficient number, since it is larger than the sum of its proper divisors (1).

425818597 is an equidigital number, since it uses as much as digits as its factorization.

425818597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 49.

The square root of 425818597 is about 20635.3724705904. The cubic root of 425818597 is about 752.3297021943.

The spelling of 425818597 in words is "four hundred twenty-five million, eight hundred eighteen thousand, five hundred ninety-seven".