52121522 has 8 divisors (see below), whose sum is σ = 82297200. Its totient is φ = 24689124.

The previous prime is 52121521. The next prime is 52121527. The reversal of 52121522 is 22512125.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 52121494 and 52121503.

It is not an unprimeable number, because it can be changed into a prime (52121521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685772 + ... + 685847.

It is an arithmetic number, because the mean of its divisors is an integer number (10287150).

Almost surely, 2^52121522 is an apocalyptic number.

52121522 is a deficient number, since it is larger than the sum of its proper divisors (30175678).

52121522 is a wasteful number, since it uses less digits than its factorization.

52121522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371640.

The product of its digits is 400, while the sum is 20.

The square root of 52121522 is about 7219.5236684978. The cubic root of 52121522 is about 373.5416473126.

Adding to 52121522 its reverse (22512125), we get a palindrome (74633647).

The spelling of 52121522 in words is "fifty-two million, one hundred twenty-one thousand, five hundred twenty-two".