425512812 has 12 divisors (see below), whose sum is σ = 992863256. Its totient is φ = 141837600.

The previous prime is 425512757. The next prime is 425512817. The reversal of 425512812 is 218215524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×425512812² = 362122306352294688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 425512812.

It is not an unprimeable number, because it can be changed into a prime (425512817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17729689 + ... + 17729712.

Almost surely, 2^425512812 is an apocalyptic number.

It is an amenable number.

425512812 is an abundant number, since it is smaller than the sum of its proper divisors (567350444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425512812 is a wasteful number, since it uses less digits than its factorization.

425512812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35459408 (or 35459406 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 425512812 is about 20627.9618964162. The cubic root of 425512812 is about 752.1495736693.

The spelling of 425512812 in words is "four hundred twenty-five million, five hundred twelve thousand, eight hundred twelve".