425756816 has 20 divisors (see below), whose sum is σ = 825344124. Its totient is φ = 212764800.

The previous prime is 425756813. The next prime is 425756831. The reversal of 425756816 is 618657524.

It can be written as a sum of positive squares in 2 ways, for example, as 363283600 + 62473216 = 19060^2 + 7904^2 .

It is not an unprimeable number, because it can be changed into a prime (425756813) 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, 29546 + ... + 41526.

Almost surely, 2^425756816 is an apocalyptic number.

It is an amenable number.

425756816 is a deficient number, since it is larger than the sum of its proper divisors (399587308).

425756816 is a wasteful number, since it uses less digits than its factorization.

425756816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14210 (or 14204 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 425756816 is about 20633.8754479133. The cubic root of 425756816 is about 752.2933158631.

The spelling of 425756816 in words is "four hundred twenty-five million, seven hundred fifty-six thousand, eight hundred sixteen".