53012515 has 16 divisors (see below), whose sum is σ = 64915200. Its totient is φ = 41552352.

The previous prime is 53012513. The next prime is 53012521. The reversal of 53012515 is 51521035.

53012515 is nontrivially palindromic in base 16.

It is a cyclic number.

It is not a de Polignac number, because 53012515 - 2¹ = 53012513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53012513) by changing a digit.

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, 57226 + ... + 58144.

It is an arithmetic number, because the mean of its divisors is an integer number (4057200).

Almost surely, 2^53012515 is an apocalyptic number.

53012515 is a deficient number, since it is larger than the sum of its proper divisors (11902685).

53012515 is a wasteful number, since it uses less digits than its factorization.

53012515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 53012515 is about 7280.9693722745. The cubic root of 53012515 is about 375.6581390803.

The spelling of 53012515 in words is "fifty-three million, twelve thousand, five hundred fifteen".