52515385 has 16 divisors (see below), whose sum is σ = 68189184. Its totient is φ = 38596032.

The previous prime is 52515367. The next prime is 52515391. The reversal of 52515385 is 58351525.

It is a cyclic number.

It is not a de Polignac number, because 52515385 - 2⁹ = 52514873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52515385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12684 + ... + 16306.

It is an arithmetic number, because the mean of its divisors is an integer number (4261824).

Almost surely, 2^52515385 is an apocalyptic number.

It is an amenable number.

52515385 is a deficient number, since it is larger than the sum of its proper divisors (15673799).

52515385 is a wasteful number, since it uses less digits than its factorization.

52515385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864.

The product of its digits is 30000, while the sum is 34.

The square root of 52515385 is about 7246.7499611895. The cubic root of 52515385 is about 374.4801923923.

It can be divided in two parts, 52515 and 385, that added together give a square (52900 = 230²).

The spelling of 52515385 in words is "fifty-two million, five hundred fifteen thousand, three hundred eighty-five".