54021565320529 has 2 divisors, whose sum is σ = 54021565320530. Its totient is φ = 54021565320528.

The previous prime is 54021565320431. The next prime is 54021565320539. The reversal of 54021565320529 is 92502356512045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32335406534929 + 21686158785600 = 5686423^2 + 4656840^2 .

It is a cyclic number.

It is not a de Polignac number, because 54021565320529 - 2²⁹ = 54021028449617 is a prime.

It is not a weakly prime, because it can be changed into another prime (54021565320539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27010782660264 + 27010782660265.

It is an arithmetic number, because the mean of its divisors is an integer number (27010782660265).

Almost surely, 2^{54021565320529} is an apocalyptic number.

It is an amenable number.

54021565320529 is a deficient number, since it is larger than the sum of its proper divisors (1).

54021565320529 is an equidigital number, since it uses as much as digits as its factorization.

54021565320529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 54021565320529 in words is "fifty-four trillion, twenty-one billion, five hundred sixty-five million, three hundred twenty thousand, five hundred twenty-nine".