52221747870 has 32 divisors (see below), whose sum is σ = 139257995040. Its totient is φ = 13925799360.

The previous prime is 52221747829. The next prime is 52221747901. The reversal of 52221747870 is 7874712225.

52221747870 is a `hidden beast` number, since 522 + 2 + 1 + 7 + 47 + 87 + 0 = 666.

It is a super-2 number, since 2×52221747870² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96706671 + ... + 96707210.

It is an arithmetic number, because the mean of its divisors is an integer number (4351812345).

Almost surely, 2^52221747870 is an apocalyptic number.

52221747870 is an abundant number, since it is smaller than the sum of its proper divisors (87036247170).

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

52221747870 is a wasteful number, since it uses less digits than its factorization.

52221747870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193413897 (or 193413891 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 52221747870 in words is "fifty-two billion, two hundred twenty-one million, seven hundred forty-seven thousand, eight hundred seventy".