52223712 has 24 divisors (see below), whose sum is σ = 137087496. Its totient is φ = 17407872.

The previous prime is 52223681. The next prime is 52223713. The reversal of 52223712 is 21732225.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52223713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271903 + ... + 272094.

It is an arithmetic number, because the mean of its divisors is an integer number (5711979).

Almost surely, 2^52223712 is an apocalyptic number.

It is an amenable number.

52223712 is an abundant number, since it is smaller than the sum of its proper divisors (84863784).

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

52223712 is a wasteful number, since it uses less digits than its factorization.

52223712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544010 (or 544002 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 52223712 is about 7226.5975396448. The cubic root of 52223712 is about 373.7856111600.

Adding to 52223712 its reverse (21732225), we get a palindrome (73955937).

The spelling of 52223712 in words is "fifty-two million, two hundred twenty-three thousand, seven hundred twelve".