53623593817 has 2 divisors, whose sum is σ = 53623593818. Its totient is φ = 53623593816.

The previous prime is 53623593797. The next prime is 53623593827. The reversal of 53623593817 is 71839532635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30004821961 + 23618771856 = 173219^2 + 153684^2 .

It is a cyclic number.

It is not a de Polignac number, because 53623593817 - 2¹⁹ = 53623069529 is a prime.

It is not a weakly prime, because it can be changed into another prime (53623593827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26811796908 + 26811796909.

It is an arithmetic number, because the mean of its divisors is an integer number (26811796909).

Almost surely, 2^53623593817 is an apocalyptic number.

It is an amenable number.

53623593817 is a deficient number, since it is larger than the sum of its proper divisors (1).

53623593817 is an equidigital number, since it uses as much as digits as its factorization.

53623593817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 52.

The spelling of 53623593817 in words is "fifty-three billion, six hundred twenty-three million, five hundred ninety-three thousand, eight hundred seventeen".