53063509 has 4 divisors (see below), whose sum is σ = 53389216. Its totient is φ = 52737804.

The previous prime is 53063503. The next prime is 53063539. The reversal of 53063509 is 90536035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90536035 = 5 ⋅18107207.

It is a cyclic number.

It is not a de Polignac number, because 53063509 - 2¹⁵ = 53030741 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 (53063503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162609 + ... + 162934.

It is an arithmetic number, because the mean of its divisors is an integer number (13347304).

Almost surely, 2^53063509 is an apocalyptic number.

It is an amenable number.

53063509 is a deficient number, since it is larger than the sum of its proper divisors (325707).

53063509 is a wasteful number, since it uses less digits than its factorization.

53063509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325706.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 53063509 is about 7284.4703994182. The cubic root of 53063509 is about 375.7785519810.

The spelling of 53063509 in words is "fifty-three million, sixty-three thousand, five hundred nine".