52121715 has 16 divisors (see below), whose sum is σ = 85649568. Its totient is φ = 27046656.

The previous prime is 52121687. The next prime is 52121723. The reversal of 52121715 is 51712125.

52121715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52121715 - 2⁵ = 52121683 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46402 + ... + 47511.

It is an arithmetic number, because the mean of its divisors is an integer number (5353098).

Almost surely, 2^52121715 is an apocalyptic number.

52121715 is a deficient number, since it is larger than the sum of its proper divisors (33527853).

52121715 is a wasteful number, since it uses less digits than its factorization.

52121715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93958.

The product of its digits is 700, while the sum is 24.

The square root of 52121715 is about 7219.5370350182. The cubic root of 52121715 is about 373.5421083726.

The spelling of 52121715 in words is "fifty-two million, one hundred twenty-one thousand, seven hundred fifteen".