52220032 has 16 divisors (see below), whose sum is σ = 104032350. Its totient is φ = 26109952.

The previous prime is 52220029. The next prime is 52220041. The reversal of 52220032 is 23002225.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 33856 = 7224^2 + 184^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 52219988 and 52220015.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203857 + ... + 204112.

Almost surely, 2^52220032 is an apocalyptic number.

It is an amenable number.

52220032 is a deficient number, since it is larger than the sum of its proper divisors (51812318).

52220032 is an equidigital number, since it uses as much as digits as its factorization.

52220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407983 (or 407971 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 52220032 is about 7226.3429201775. The cubic root of 52220032 is about 373.7768312188.

Adding to 52220032 its reverse (23002225), we get a palindrome (75222257).

The spelling of 52220032 in words is "fifty-two million, two hundred twenty thousand, thirty-two".