54139209500 has 24 divisors (see below), whose sum is σ = 118240034640. Its totient is φ = 21655683600.

The previous prime is 54139209499. The next prime is 54139209533. The reversal of 54139209500 is 590293145.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54138710 + ... + 54139709.

It is an arithmetic number, because the mean of its divisors is an integer number (4926668110).

Almost surely, 2^54139209500 is an apocalyptic number.

54139209500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54139209500 is an abundant number, since it is smaller than the sum of its proper divisors (64100825140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54139209500 is a wasteful number, since it uses less digits than its factorization.

54139209500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108278438 (or 108278426 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 54139209500 in words is "fifty-four billion, one hundred thirty-nine million, two hundred nine thousand, five hundred".