52272221217520 has 80 divisors (see below), whose sum is σ = 122225498942400. Its totient is φ = 20789875003392.

The previous prime is 52272221217511. The next prime is 52272221217523. The reversal of 52272221217520 is 2571212227225.

52272221217520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×52272221217520² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52272221217523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22668952 + ... + 24868168.

It is an arithmetic number, because the mean of its divisors is an integer number (1527818736780).

Almost surely, 2^{52272221217520} is an apocalyptic number.

It is an amenable number.

52272221217520 is an abundant number, since it is smaller than the sum of its proper divisors (69953277724880).

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

52272221217520 is a wasteful number, since it uses less digits than its factorization.

52272221217520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200922 (or 2200916 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 52272221217520 in words is "fifty-two trillion, two hundred seventy-two billion, two hundred twenty-one million, two hundred seventeen thousand, five hundred twenty".