53073613 has 4 divisors (see below), whose sum is σ = 53149180. Its totient is φ = 52998048.

The previous prime is 53073611. The next prime is 53073619. The reversal of 53073613 is 31637035.

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 5560164 + 47513449 = 2358^2 + 6893^2 .

It is a cyclic number.

It is not a de Polignac number, because 53073613 - 2¹ = 53073611 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 (53073611) 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, 36720 + ... + 38137.

It is an arithmetic number, because the mean of its divisors is an integer number (13287295).

Almost surely, 2^53073613 is an apocalyptic number.

It is an amenable number.

53073613 is a deficient number, since it is larger than the sum of its proper divisors (75567).

53073613 is an equidigital number, since it uses as much as digits as its factorization.

53073613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75566.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 53073613 is about 7285.1638965778. The cubic root of 53073613 is about 375.8024015504.

The spelling of 53073613 in words is "fifty-three million, seventy-three thousand, six hundred thirteen".