54260812139 has 4 divisors (see below), whose sum is σ = 54311954400. Its totient is φ = 54209669880.

The previous prime is 54260812121. The next prime is 54260812147. The reversal of 54260812139 is 93121806245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54260812139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54260812096 and 54260812105.

It is not an unprimeable number, because it can be changed into a prime (54260812159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25569539 + ... + 25571660.

It is an arithmetic number, because the mean of its divisors is an integer number (13577988600).

Almost surely, 2^54260812139 is an apocalyptic number.

54260812139 is a deficient number, since it is larger than the sum of its proper divisors (51142261).

54260812139 is a wasteful number, since it uses less digits than its factorization.

54260812139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51142260.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 54260812139 in words is "fifty-four billion, two hundred sixty million, eight hundred twelve thousand, one hundred thirty-nine".