54544145531 has 2 divisors, whose sum is σ = 54544145532. Its totient is φ = 54544145530.

The previous prime is 54544145507. The next prime is 54544145549. The reversal of 54544145531 is 13554144545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54544145531 - 2²⁶ = 54477036667 is a prime.

It is a super-2 number, since 2×54544145531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54544145561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27272072765 + 27272072766.

It is an arithmetic number, because the mean of its divisors is an integer number (27272072766).

Almost surely, 2^54544145531 is an apocalyptic number.

54544145531 is a deficient number, since it is larger than the sum of its proper divisors (1).

54544145531 is an equidigital number, since it uses as much as digits as its factorization.

54544145531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480000, while the sum is 41.

The spelling of 54544145531 in words is "fifty-four billion, five hundred forty-four million, one hundred forty-five thousand, five hundred thirty-one".