54099019904 has 16 divisors (see below), whose sum is σ = 107775391470. Its totient is φ = 27049509888.

The previous prime is 54099019889. The next prime is 54099019921. The reversal of 54099019904 is 40991099045.

It can be written as a sum of positive squares in only one way, i.e., 28291240000 + 25807779904 = 168200^2 + 160648^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211324169 + ... + 211324424.

Almost surely, 2^54099019904 is an apocalyptic number.

It is an amenable number.

54099019904 is a deficient number, since it is larger than the sum of its proper divisors (53676371566).

54099019904 is an equidigital number, since it uses as much as digits as its factorization.

54099019904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422648607 (or 422648595 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 54099019904 in words is "fifty-four billion, ninety-nine million, nineteen thousand, nine hundred four".