52021622 has 4 divisors (see below), whose sum is σ = 78032436. Its totient is φ = 26010810.

The previous prime is 52021609. The next prime is 52021631. The reversal of 52021622 is 22612025.

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

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 52021594 and 52021603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13005404 + ... + 13005407.

It is an arithmetic number, because the mean of its divisors is an integer number (19508109).

Almost surely, 2^52021622 is an apocalyptic number.

52021622 is a deficient number, since it is larger than the sum of its proper divisors (26010814).

52021622 is a wasteful number, since it uses less digits than its factorization.

52021622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26010813.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 52021622 is about 7212.6016110693. The cubic root of 52021622 is about 373.3028420747.

Adding to 52021622 its reverse (22612025), we get a palindrome (74633647).

The spelling of 52021622 in words is "fifty-two million, twenty-one thousand, six hundred twenty-two".