53817793 has 2 divisors, whose sum is σ = 53817794. Its totient is φ = 53817792.

The previous prime is 53817739. The next prime is 53817859. The reversal of 53817793 is 39771835.

Together with previous prime (53817739) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51151104 + 2666689 = 7152^2 + 1633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53817793 is a prime.

It is not a weakly prime, because it can be changed into another prime (53817713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26908896 + 26908897.

It is an arithmetic number, because the mean of its divisors is an integer number (26908897).

Almost surely, 2^53817793 is an apocalyptic number.

It is an amenable number.

53817793 is a deficient number, since it is larger than the sum of its proper divisors (1).

53817793 is an equidigital number, since it uses as much as digits as its factorization.

53817793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 53817793 is about 7336.0611366046. The cubic root of 53817793 is about 377.5507128923.

The spelling of 53817793 in words is "fifty-three million, eight hundred seventeen thousand, seven hundred ninety-three".