52111515 has 32 divisors (see below), whose sum is σ = 85349376. Its totient is φ = 27144320.

The previous prime is 52111513. The next prime is 52111519. The reversal of 52111515 is 51511125.

52111515 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 52111515 - 2¹ = 52111513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52111491 and 52111500.

It is not an unprimeable number, because it can be changed into a prime (52111513) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 177709 + ... + 178001.

It is an arithmetic number, because the mean of its divisors is an integer number (2667168).

Almost surely, 2^52111515 is an apocalyptic number.

52111515 is a deficient number, since it is larger than the sum of its proper divisors (33237861).

52111515 is a wasteful number, since it uses less digits than its factorization.

52111515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539.

The product of its digits is 250, while the sum is 21.

The square root of 52111515 is about 7218.8305839658. The cubic root of 52111515 is about 373.5177399107.

The spelling of 52111515 in words is "fifty-two million, one hundred eleven thousand, five hundred fifteen".