52113223220 has 12 divisors (see below), whose sum is σ = 109437768804. Its totient is φ = 20845289280.

The previous prime is 52113223219. The next prime is 52113223249. The reversal of 52113223220 is 2232231125.

It can be written as a sum of positive squares in 2 ways, for example, as 40825010704 + 11288212516 = 202052^2 + 106246^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302830561 + ... + 1302830600.

It is an arithmetic number, because the mean of its divisors is an integer number (9119814067).

Almost surely, 2^52113223220 is an apocalyptic number.

It is an amenable number.

52113223220 is an abundant number, since it is smaller than the sum of its proper divisors (57324545584).

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

52113223220 is a wasteful number, since it uses less digits than its factorization.

52113223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605661170 (or 2605661168 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 52113223220 its reverse (2232231125), we get a palindrome (54345454345).

The spelling of 52113223220 in words is "fifty-two billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred twenty".