55004005 has 16 divisors (see below), whose sum is σ = 76673664. Its totient is φ = 37097280.

The previous prime is 55004003. The next prime is 55004021. The reversal of 55004005 is 50040055.

It is a happy number.

It is not a de Polignac number, because 55004005 - 2¹ = 55004003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55004003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10747 + ... + 15016.

It is an arithmetic number, because the mean of its divisors is an integer number (4792104).

Almost surely, 2^55004005 is an apocalyptic number.

It is an amenable number.

55004005 is a deficient number, since it is larger than the sum of its proper divisors (21669659).

55004005 is a wasteful number, since it uses less digits than its factorization.

55004005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25836.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 55004005 is about 7416.4684992252. The cubic root of 55004005 is about 380.3044766549.

The spelling of 55004005 in words is "fifty-five million, four thousand, five".