53550513 has 6 divisors (see below), whose sum is σ = 77350754. Its totient is φ = 35700336.

The previous prime is 53550481. The next prime is 53550517. The reversal of 53550513 is 31505535.

53550513 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 only one way, i.e., 48608784 + 4941729 = 6972^2 + 2223^2 .

It is not a de Polignac number, because 53550513 - 2⁵ = 53550481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53550517) 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 5 ways as a sum of consecutive naturals, for example, 2975020 + ... + 2975037.

Almost surely, 2^53550513 is an apocalyptic number.

It is an amenable number.

53550513 is a deficient number, since it is larger than the sum of its proper divisors (23800241).

53550513 is a wasteful number, since it uses less digits than its factorization.

53550513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950063 (or 5950060 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 53550513 is about 7317.8216020890. The cubic root of 53550513 is about 376.9246543158.

The spelling of 53550513 in words is "fifty-three million, five hundred fifty thousand, five hundred thirteen".