52220522 has 4 divisors (see below), whose sum is σ = 78330786. Its totient is φ = 26110260.

The previous prime is 52220479. The next prime is 52220543. The reversal of 52220522 is 22502225.

It is a happy number.

52220522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49434961 + 2785561 = 7031^2 + 1669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52220494 and 52220503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13055129 + ... + 13055132.

Almost surely, 2^52220522 is an apocalyptic number.

52220522 is a deficient number, since it is larger than the sum of its proper divisors (26110264).

52220522 is a wasteful number, since it uses less digits than its factorization.

52220522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110263.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52220522 is about 7226.3768238309. The cubic root of 52220522 is about 373.7780003109.

Adding to 52220522 its reverse (22502225), we get a palindrome (74722747).

The spelling of 52220522 in words is "fifty-two million, two hundred twenty thousand, five hundred twenty-two".