54909666050 has 54 divisors (see below), whose sum is σ = 105631649019. Its totient is φ = 21235471200.

The previous prime is 54909666047. The next prime is 54909666079. The reversal of 54909666050 is 5066690945.

It can be written as a sum of positive squares in 5 ways, for example, as 18075995809 + 36833670241 = 134447^2 + 191921^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=165695.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 54909666050.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 51364916 + ... + 51365984.

Almost surely, 2^54909666050 is an apocalyptic number.

54909666050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54909666050 is a deficient number, since it is larger than the sum of its proper divisors (50721982969).

54909666050 is an equidigital number, since it uses as much as digits as its factorization.

54909666050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 50.

Multiplying 54909666050 by its sum of digits (50), we get a square (2745483302500 = 1656950²).

54909666050 divided by its sum of digits (50) gives a square (1098193321 = 33139²).

The spelling of 54909666050 in words is "fifty-four billion, nine hundred nine million, six hundred sixty-six thousand, fifty".