55004609 has 8 divisors (see below), whose sum is σ = 60236352. Its totient is φ = 49811440.

The previous prime is 55004603. The next prime is 55004627. The reversal of 55004609 is 90640055.

55004609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55004609 - 2¹² = 55000513 is a prime.

It is a super-2 number, since 2×55004609² = 6051014022485762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55004603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6614 + ... + 12399.

It is an arithmetic number, because the mean of its divisors is an integer number (7529544).

Almost surely, 2^55004609 is an apocalyptic number.

It is an amenable number.

55004609 is a deficient number, since it is larger than the sum of its proper divisors (5231743).

55004609 is a wasteful number, since it uses less digits than its factorization.

55004609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19287.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 55004609 is about 7416.5092193026. The cubic root of 55004609 is about 380.3058686933.

The spelling of 55004609 in words is "fifty-five million, four thousand, six hundred nine".