522216005652 has 72 divisors (see below), whose sum is σ = 1502661101760. Its totient is φ = 151366955520.

The previous prime is 522216005611. The next prime is 522216005657. The reversal of 522216005652 is 256500612225.

522216005652 is a `hidden beast` number, since 5 + 22 + 21 + 600 + 5 + 6 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522216005657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28658877 + ... + 28677092.

It is an arithmetic number, because the mean of its divisors is an integer number (20870293080).

Almost surely, 2^522216005652 is an apocalyptic number.

It is an amenable number.

522216005652 is an abundant number, since it is smaller than the sum of its proper divisors (980445096108).

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

522216005652 is a wasteful number, since it uses less digits than its factorization.

522216005652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57336013 (or 57336008 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 522216005652 its reverse (256500612225), we get a palindrome (778716617877).

The spelling of 522216005652 in words is "five hundred twenty-two billion, two hundred sixteen million, five thousand, six hundred fifty-two".