425506573 has 2 divisors, whose sum is σ = 425506574. Its totient is φ = 425506572.

The previous prime is 425506567. The next prime is 425506591. The reversal of 425506573 is 375605524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406304649 + 19201924 = 20157^2 + 4382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425506573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425507573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212753286 + 212753287.

It is an arithmetic number, because the mean of its divisors is an integer number (212753287).

Almost surely, 2^425506573 is an apocalyptic number.

It is an amenable number.

425506573 is a deficient number, since it is larger than the sum of its proper divisors (1).

425506573 is an equidigital number, since it uses as much as digits as its factorization.

425506573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 425506573 is about 20627.8106690943. The cubic root of 425506573 is about 752.1458975683.

The spelling of 425506573 in words is "four hundred twenty-five million, five hundred six thousand, five hundred seventy-three".