52515121 has 8 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 50863488.

The previous prime is 52515101. The next prime is 52515139. The reversal of 52515121 is 12151525.

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-52515121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52515092 and 52515101.

It is not an unprimeable number, because it can be changed into a prime (52515101) 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, 1201 + ... + 10318.

It is an arithmetic number, because the mean of its divisors is an integer number (6773760).

Almost surely, 2^52515121 is an apocalyptic number.

It is an amenable number.

52515121 is a deficient number, since it is larger than the sum of its proper divisors (1674959).

52515121 is a wasteful number, since it uses less digits than its factorization.

52515121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11663.

The product of its digits is 500, while the sum is 22.

The square root of 52515121 is about 7246.7317461046. The cubic root of 52515121 is about 374.4795648750.

Adding to 52515121 its reverse (12151525), we get a palindrome (64666646).

The spelling of 52515121 in words is "fifty-two million, five hundred fifteen thousand, one hundred twenty-one".