53083993 has 4 divisors (see below), whose sum is σ = 53146368. Its totient is φ = 53021620.

The previous prime is 53083963. The next prime is 53083999. The reversal of 53083993 is 39938035.

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: 39938035 = 5 ⋅7987607.

It is a cyclic number.

It is not a de Polignac number, because 53083993 - 2²¹ = 50986841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53083999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29893 + ... + 31618.

It is an arithmetic number, because the mean of its divisors is an integer number (13286592).

Almost surely, 2^53083993 is an apocalyptic number.

It is an amenable number.

53083993 is a deficient number, since it is larger than the sum of its proper divisors (62375).

53083993 is an equidigital number, since it uses as much as digits as its factorization.

53083993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62374.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 53083993 is about 7285.8762685074. The cubic root of 53083993 is about 375.8268994408.

The spelling of 53083993 in words is "fifty-three million, eighty-three thousand, nine hundred ninety-three".