54520513550 has 48 divisors (see below), whose sum is σ = 103857748512. Its totient is φ = 21287577600.

The previous prime is 54520513519. The next prime is 54520513601. The reversal of 54520513550 is 5531502545.

It is a self number, because there is not a number n which added to its sum of digits gives 54520513550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277055 + ... + 431045.

It is an arithmetic number, because the mean of its divisors is an integer number (2163703094).

Almost surely, 2^54520513550 is an apocalyptic number.

54520513550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54520513550 is a deficient number, since it is larger than the sum of its proper divisors (49337234962).

54520513550 is a wasteful number, since it uses less digits than its factorization.

54520513550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154173 (or 154168 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 54520513550 in words is "fifty-four billion, five hundred twenty million, five hundred thirteen thousand, five hundred fifty".