54240011531 has 8 divisors (see below), whose sum is σ = 58422534720. Its totient is φ = 50190266952.

The previous prime is 54240011519. The next prime is 54240011557. The reversal of 54240011531 is 13511004245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54240011531 is a prime.

It is a super-2 number, since 2×54240011531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54240011531.

It is not an unprimeable number, because it can be changed into a prime (54240011591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33193805 + ... + 33195438.

It is an arithmetic number, because the mean of its divisors is an integer number (7302816840).

Almost surely, 2^54240011531 is an apocalyptic number.

54240011531 is a deficient number, since it is larger than the sum of its proper divisors (4182523189).

54240011531 is a wasteful number, since it uses less digits than its factorization.

54240011531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66389305.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 54240011531 its reverse (13511004245), we get a palindrome (67751015776).

The spelling of 54240011531 in words is "fifty-four billion, two hundred forty million, eleven thousand, five hundred thirty-one".