52122521 has 8 divisors (see below), whose sum is σ = 58248288. Its totient is φ = 46228000.

The previous prime is 52122503. The next prime is 52122533. The reversal of 52122521 is 12522125.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52122521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52122493 and 52122502.

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 7 ways as a sum of consecutive naturals, for example, 57335 + ... + 58236.

It is an arithmetic number, because the mean of its divisors is an integer number (7281036).

Almost surely, 2^52122521 is an apocalyptic number.

It is an amenable number.

52122521 is a deficient number, since it is larger than the sum of its proper divisors (6125767).

52122521 is a wasteful number, since it uses less digits than its factorization.

52122521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115623.

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

The square root of 52122521 is about 7219.5928555563. The cubic root of 52122521 is about 373.5440338233.

Adding to 52122521 its reverse (12522125), we get a palindrome (64644646).

The spelling of 52122521 in words is "fifty-two million, one hundred twenty-two thousand, five hundred twenty-one".