55005506 has 8 divisors (see below), whose sum is σ = 87361740. Its totient is φ = 25884928.

The previous prime is 55005481. The next prime is 55005521. The reversal of 55005506 is 60550055.

It can be written as a sum of positive squares in 2 ways, for example, as 54893281 + 112225 = 7409^2 + 335^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808871 + ... + 808938.

Almost surely, 2^55005506 is an apocalyptic number.

55005506 is a deficient number, since it is larger than the sum of its proper divisors (32356234).

55005506 is a wasteful number, since it uses less digits than its factorization.

55005506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617828.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55005506 is about 7416.5696922499. The cubic root of 55005506 is about 380.3079359898.

The spelling of 55005506 in words is "fifty-five million, five thousand, five hundred six".