55005006 has 32 divisors (see below), whose sum is σ = 131194368. Its totient is φ = 15032160.

The previous prime is 55004969. The next prime is 55005011. The reversal of 55005006 is 60050055.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27505 + ... + 29436.

It is an arithmetic number, because the mean of its divisors is an integer number (4099824).

Almost surely, 2^55005006 is an apocalyptic number.

55005006 is an abundant number, since it is smaller than the sum of its proper divisors (76189362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55005006 is a wasteful number, since it uses less digits than its factorization.

55005006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56976.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55005006 is about 7416.5359838674. The cubic root of 55005006 is about 380.3067836534.

The spelling of 55005006 in words is "fifty-five million, five thousand, six".