54520135573 has 2 divisors, whose sum is σ = 54520135574. Its totient is φ = 54520135572.

The previous prime is 54520135531. The next prime is 54520135591. The reversal of 54520135573 is 37553102545.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54080897809 + 439237764 = 232553^2 + 20958^2 .

It is a cyclic number.

It is not a de Polignac number, because 54520135573 - 2¹⁷ = 54520004501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54520135273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27260067786 + 27260067787.

It is an arithmetic number, because the mean of its divisors is an integer number (27260067787).

Almost surely, 2^54520135573 is an apocalyptic number.

It is an amenable number.

54520135573 is a deficient number, since it is larger than the sum of its proper divisors (1).

54520135573 is an equidigital number, since it uses as much as digits as its factorization.

54520135573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 54520135573 in words is "fifty-four billion, five hundred twenty million, one hundred thirty-five thousand, five hundred seventy-three".