54544165531 has 2 divisors, whose sum is σ = 54544165532. Its totient is φ = 54544165530.

The previous prime is 54544165517. The next prime is 54544165573. The reversal of 54544165531 is 13556144545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54544165531 - 2⁹ = 54544165019 is a prime.

It is a super-2 number, since 2×54544165531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54544145531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27272082765 + 27272082766.

It is an arithmetic number, because the mean of its divisors is an integer number (27272082766).

Almost surely, 2^54544165531 is an apocalyptic number.

54544165531 is a deficient number, since it is larger than the sum of its proper divisors (1).

54544165531 is an equidigital number, since it uses as much as digits as its factorization.

54544165531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720000, while the sum is 43.

The spelling of 54544165531 in words is "fifty-four billion, five hundred forty-four million, one hundred sixty-five thousand, five hundred thirty-one".