53559973 has 2 divisors, whose sum is σ = 53559974. Its totient is φ = 53559972.

The previous prime is 53559967. The next prime is 53559977. The reversal of 53559973 is 37995535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45454564 + 8105409 = 6742^2 + 2847^2 .

It is a cyclic number.

It is not a de Polignac number, because 53559973 - 2²⁵ = 20005541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53559977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26779986 + 26779987.

It is an arithmetic number, because the mean of its divisors is an integer number (26779987).

Almost surely, 2^53559973 is an apocalyptic number.

It is an amenable number.

53559973 is a deficient number, since it is larger than the sum of its proper divisors (1).

53559973 is an equidigital number, since it uses as much as digits as its factorization.

53559973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 637875, while the sum is 46.

The square root of 53559973 is about 7318.4679407647. The cubic root of 53559973 is about 376.9468482973.

The spelling of 53559973 in words is "fifty-three million, five hundred fifty-nine thousand, nine hundred seventy-three".