52220220552 has 24 divisors (see below), whose sum is σ = 141429764190. Its totient is φ = 17406740160.

The previous prime is 52220220523. The next prime is 52220220557. The reversal of 52220220552 is 25502202225.

It can be written as a sum of positive squares in only one way, i.e., 27604493316 + 24615727236 = 166146^2 + 156894^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (52220220557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362640349 + ... + 362640492.

Almost surely, 2^52220220552 is an apocalyptic number.

It is an amenable number.

52220220552 is an abundant number, since it is smaller than the sum of its proper divisors (89209543638).

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

52220220552 is a wasteful number, since it uses less digits than its factorization.

52220220552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725280853 (or 725280846 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 52220220552 its reverse (25502202225), we get a palindrome (77722422777).

The spelling of 52220220552 in words is "fifty-two billion, two hundred twenty million, two hundred twenty thousand, five hundred fifty-two".