63516293 has 4 divisors (see below), whose sum is σ = 65706540. Its totient is φ = 61326048.

The previous prime is 63516287. The next prime is 63516307. The reversal of 63516293 is 39261536.

63516293 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 can be written as a sum of positive squares in 2 ways, for example, as 46689889 + 16826404 = 6833^2 + 4102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63516293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63516263) 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 3 ways as a sum of consecutive naturals, for example, 1095080 + ... + 1095137.

It is an arithmetic number, because the mean of its divisors is an integer number (16426635).

Almost surely, 2^63516293 is an apocalyptic number.

It is an amenable number.

63516293 is a deficient number, since it is larger than the sum of its proper divisors (2190247).

63516293 is a wasteful number, since it uses less digits than its factorization.

63516293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190246.

The product of its digits is 29160, while the sum is 35.

The square root of 63516293 is about 7969.7109734293. The cubic root of 63516293 is about 398.9897276058.

The spelling of 63516293 in words is "sixty-three million, five hundred sixteen thousand, two hundred ninety-three".