52400222812 has 12 divisors (see below), whose sum is σ = 104800445680. Its totient is φ = 22457238336.

The previous prime is 52400222807. The next prime is 52400222813. The reversal of 52400222812 is 21822200425.

52400222812 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1871436529 = 52400222812 / (5 + 2 + 4 + 0 + 0 + 2 + 2 + 2 + 8 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52400222813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935718237 + ... + 935718292.

Almost surely, 2^52400222812 is an apocalyptic number.

It is an amenable number.

52400222812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52400222812 is a wasteful number, since it uses less digits than its factorization.

52400222812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871436540 (or 1871436538 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The spelling of 52400222812 in words is "fifty-two billion, four hundred million, two hundred twenty-two thousand, eight hundred twelve".