54001171881111 has 32 divisors (see below), whose sum is σ = 88620472926720. Its totient is φ = 28483117225344.

The previous prime is 54001171881067. The next prime is 54001171881113. The reversal of 54001171881111 is 11118817110045.

It is not a de Polignac number, because 54001171881111 - 2¹⁰ = 54001171880087 is a prime.

It is a super-2 number, since 2×54001171881111² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 54001171881111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54001171881113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4155196 + ... + 11192318.

It is an arithmetic number, because the mean of its divisors is an integer number (2769389778960).

Almost surely, 2^{54001171881111} is an apocalyptic number.

54001171881111 is a deficient number, since it is larger than the sum of its proper divisors (34619301045609).

54001171881111 is a wasteful number, since it uses less digits than its factorization.

54001171881111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065255.

The product of its (nonzero) digits is 8960, while the sum is 39.

Adding to 54001171881111 its reverse (11118817110045), we get a palindrome (65119988991156).

The spelling of 54001171881111 in words is "fifty-four trillion, one billion, one hundred seventy-one million, eight hundred eighty-one thousand, one hundred eleven".