5223621612 has 24 divisors (see below), whose sum is σ = 13296491712. Its totient is φ = 1582915600.

The previous prime is 5223621539. The next prime is 5223621617. The reversal of 5223621612 is 2161263225.

It is a self number, because there is not a number n which added to its sum of digits gives 5223621612.

It is not an unprimeable number, because it can be changed into a prime (5223621617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19786314 + ... + 19786577.

It is an arithmetic number, because the mean of its divisors is an integer number (554020488).

Almost surely, 2^5223621612 is an apocalyptic number.

It is an amenable number.

5223621612 is an abundant number, since it is smaller than the sum of its proper divisors (8072870100).

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

5223621612 is a wasteful number, since it uses less digits than its factorization.

5223621612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39572909 (or 39572907 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 5223621612 is about 72274.6263359417. The cubic root of 5223621612 is about 1735.0975771402.

Adding to 5223621612 its reverse (2161263225), we get a palindrome (7384884837).

The spelling of 5223621612 in words is "five billion, two hundred twenty-three million, six hundred twenty-one thousand, six hundred twelve".