425709506 has 8 divisors (see below), whose sum is σ = 644764224. Its totient is φ = 210788100.

The previous prime is 425709481. The next prime is 425709547. The reversal of 425709506 is 605907524.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 425709506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033070 + ... + 1033481.

It is an arithmetic number, because the mean of its divisors is an integer number (80595528).

Almost surely, 2^425709506 is an apocalyptic number.

425709506 is a deficient number, since it is larger than the sum of its proper divisors (219054718).

425709506 is a wasteful number, since it uses less digits than its factorization.

425709506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066656.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 425709506 is about 20632.7290003043. The cubic root of 425709506 is about 752.2654499439.

The spelling of 425709506 in words is "four hundred twenty-five million, seven hundred nine thousand, five hundred six".