425223636 has 24 divisors (see below), whose sum is σ = 1026402720. Its totient is φ = 136853472.

The previous prime is 425223599. The next prime is 425223641. The reversal of 425223636 is 636322524.

It is a super-2 number, since 2×425223636² = 361630281226120992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425223597 and 425223606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610606 + ... + 611301.

It is an arithmetic number, because the mean of its divisors is an integer number (42766780).

Almost surely, 2^425223636 is an apocalyptic number.

It is an amenable number.

425223636 is an abundant number, since it is smaller than the sum of its proper divisors (601179084).

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

425223636 is a wasteful number, since it uses less digits than its factorization.

425223636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221943 (or 1221941 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 425223636 is about 20620.9513844536. The cubic root of 425223636 is about 751.9791495841.

The spelling of 425223636 in words is "four hundred twenty-five million, two hundred twenty-three thousand, six hundred thirty-six".