425390626 has 8 divisors (see below), whose sum is σ = 675620460. Its totient is φ = 200183808.

The previous prime is 425390611. The next prime is 425390627. The reversal of 425390626 is 626093524.

It is a Cunningham number, because it is equal to 20625²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 425390625 + 1 = 20625^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×425390626³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (425390627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6255711 + ... + 6255778.

Almost surely, 2^425390626 is an apocalyptic number.

425390626 is a deficient number, since it is larger than the sum of its proper divisors (250229834).

425390626 is a wasteful number, since it uses less digits than its factorization.

425390626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12511508.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 425390626 is about 20625.0000242424. Note that the first 4 decimals coincide. The cubic root of 425390626 is about 752.0775735295.

The spelling of 425390626 in words is "four hundred twenty-five million, three hundred ninety thousand, six hundred twenty-six".