12054550539 has 16 divisors (see below), whose sum is σ = 17312569344. Its totient is φ = 7438992000.

The previous prime is 12054550537. The next prime is 12054550577. The reversal of 12054550539 is 93505545021.

It is not a de Polignac number, because 12054550539 - 2¹ = 12054550537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12054550497 and 12054550506.

It is not an unprimeable number, because it can be changed into a prime (12054550537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815662 + ... + 2819939.

It is an arithmetic number, because the mean of its divisors is an integer number (1082035584).

Almost surely, 2^12054550539 is an apocalyptic number.

12054550539 is a deficient number, since it is larger than the sum of its proper divisors (5258018805).

12054550539 is a wasteful number, since it uses less digits than its factorization.

12054550539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635658.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 12054550539 in words is "twelve billion, fifty-four million, five hundred fifty thousand, five hundred thirty-nine".