53015705 has 4 divisors (see below), whose sum is σ = 63618852. Its totient is φ = 42412560.

The previous prime is 53015687. The next prime is 53015723. The reversal of 53015705 is 50751035.

53015705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53015687) and next prime (53015723).

It can be written as a sum of positive squares in 2 ways, for example, as 15217801 + 37797904 = 3901^2 + 6148^2 .

It is not a de Polignac number, because 53015705 - 2⁸ = 53015449 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 5301566 + ... + 5301575.

It is an arithmetic number, because the mean of its divisors is an integer number (15904713).

Almost surely, 2^53015705 is an apocalyptic number.

It is an amenable number.

53015705 is a deficient number, since it is larger than the sum of its proper divisors (10603147).

53015705 is a wasteful number, since it uses less digits than its factorization.

53015705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10603146.

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 53015705 is about 7281.1884332161. The cubic root of 53015705 is about 375.6656739390.

The spelling of 53015705 in words is "fifty-three million, fifteen thousand, seven hundred five".