53015706 has 24 divisors (see below), whose sum is σ = 117670644. Its totient is φ = 17240640.

The previous prime is 53015687. The next prime is 53015723. The reversal of 53015706 is 60751035.

53015706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49829481 + 3186225 = 7059^2 + 1785^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53015706.

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 11 ways as a sum of consecutive naturals, for example, 35181 + ... + 36656.

Almost surely, 2^53015706 is an apocalyptic number.

53015706 is an abundant number, since it is smaller than the sum of its proper divisors (64654938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53015706 is a wasteful number, since it uses less digits than its factorization.

53015706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71886 (or 71883 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 53015706 is about 7281.1885018862. The cubic root of 53015706 is about 375.6656763010.

The spelling of 53015706 in words is "fifty-three million, fifteen thousand, seven hundred six".