54609861533 has 2 divisors, whose sum is σ = 54609861534. Its totient is φ = 54609861532.

The previous prime is 54609861463. The next prime is 54609861539. The reversal of 54609861533 is 33516890645.

It is a happy number.

54609861533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44716177444 + 9893684089 = 211462^2 + 99467^2 .

It is a cyclic number.

It is not a de Polignac number, because 54609861533 - 2¹⁸ = 54609599389 is a prime.

It is a super-2 number, since 2×54609861533² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54609861539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27304930766 + 27304930767.

It is an arithmetic number, because the mean of its divisors is an integer number (27304930767).

Almost surely, 2^54609861533 is an apocalyptic number.

It is an amenable number.

54609861533 is a deficient number, since it is larger than the sum of its proper divisors (1).

54609861533 is an equidigital number, since it uses as much as digits as its factorization.

54609861533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 54609861533 in words is "fifty-four billion, six hundred nine million, eight hundred sixty-one thousand, five hundred thirty-three".