52220732 has 6 divisors (see below), whose sum is σ = 91386288. Its totient is φ = 26110364.

The previous prime is 52220731. The next prime is 52220743. The reversal of 52220732 is 23702225.

It is a junction number, because it is equal to n+sod(n) for n = 52220698 and 52220707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52220731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6527588 + ... + 6527595.

It is an arithmetic number, because the mean of its divisors is an integer number (15231048).

Almost surely, 2^52220732 is an apocalyptic number.

It is an amenable number.

52220732 is a deficient number, since it is larger than the sum of its proper divisors (39165556).

52220732 is a wasteful number, since it uses less digits than its factorization.

52220732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13055187 (or 13055185 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 52220732 is about 7226.3913539193. The cubic root of 52220732 is about 373.7785013481.

Adding to 52220732 its reverse (23702225), we get a palindrome (75922957).

The spelling of 52220732 in words is "fifty-two million, two hundred twenty thousand, seven hundred thirty-two".