53615513 has 8 divisors (see below), whose sum is σ = 61341120. Its totient is φ = 45906480.

The previous prime is 53615503. The next prime is 53615521. The reversal of 53615513 is 31551635.

53615513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53615513 - 2¹⁸ = 53353369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53615503) 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 7 ways as a sum of consecutive naturals, for example, 3818 + ... + 11036.

It is an arithmetic number, because the mean of its divisors is an integer number (7667640).

Almost surely, 2^53615513 is an apocalyptic number.

It is an amenable number.

53615513 is a deficient number, since it is larger than the sum of its proper divisors (7725607).

53615513 is a wasteful number, since it uses less digits than its factorization.

53615513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8287.

The product of its digits is 6750, while the sum is 29.

The square root of 53615513 is about 7322.2614676068. The cubic root of 53615513 is about 377.0770972776.

The spelling of 53615513 in words is "fifty-three million, six hundred fifteen thousand, five hundred thirteen".