52820122 has 16 divisors (see below), whose sum is σ = 84680640. Its totient is φ = 24622528.

The previous prime is 52820113. The next prime is 52820123. The reversal of 52820122 is 22102825.

It is a junction number, because it is equal to n+sod(n) for n = 52820093 and 52820102.

It is not an unprimeable number, because it can be changed into a prime (52820123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622 + ... + 10897.

It is an arithmetic number, because the mean of its divisors is an integer number (5292540).

Almost surely, 2^52820122 is an apocalyptic number.

52820122 is a deficient number, since it is larger than the sum of its proper divisors (31860518).

52820122 is a wasteful number, since it uses less digits than its factorization.

52820122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14645.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52820122 is about 7267.7453174970. The cubic root of 52820122 is about 375.2031420837.

Adding to 52820122 its reverse (22102825), we get a palindrome (74922947).

The spelling of 52820122 in words is "fifty-two million, eight hundred twenty thousand, one hundred twenty-two".