54005515043231 has 12 divisors (see below), whose sum is σ = 57692826633312. Its totient is φ = 50378908156416.

The previous prime is 54005515043113. The next prime is 54005515043239. The reversal of 54005515043231 is 13234051550045.

It is a de Polignac number, because none of the positive numbers 2^k-54005515043231 is a prime.

It is a super-2 number, since 2×54005515043231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54005515043239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124177751 + ... + 124611896.

It is an arithmetic number, because the mean of its divisors is an integer number (4807735552776).

Almost surely, 2^{54005515043231} is an apocalyptic number.

54005515043231 is a deficient number, since it is larger than the sum of its proper divisors (3687311590081).

54005515043231 is a wasteful number, since it uses less digits than its factorization.

54005515043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248789890 (or 248789777 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 54005515043231 its reverse (13234051550045), we get a palindrome (67239566593276).

The spelling of 54005515043231 in words is "fifty-four trillion, five billion, five hundred fifteen million, forty-three thousand, two hundred thirty-one".