54599909 has 8 divisors (see below), whose sum is σ = 67200000. Its totient is φ = 43199856.

The previous prime is 54599891. The next prime is 54599933. The reversal of 54599909 is 90999545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54599909 - 2⁸ = 54599653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54599969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299909 + ... + 300090.

It is an arithmetic number, because the mean of its divisors is an integer number (8400000).

Almost surely, 2^54599909 is an apocalyptic number.

It is an amenable number.

54599909 is a deficient number, since it is larger than the sum of its proper divisors (12600091).

54599909 is a wasteful number, since it uses less digits than its factorization.

54599909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600019.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 54599909 is about 7389.1751231108. The cubic root of 54599909 is about 379.3708633942.

The spelling of 54599909 in words is "fifty-four million, five hundred ninety-nine thousand, nine hundred nine".