55559906 has 8 divisors (see below), whose sum is σ = 83436480. Its totient is φ = 27747748.

The previous prime is 55559897. The next prime is 55559923. The reversal of 55559906 is 60995555.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13886 + ... + 17433.

It is an arithmetic number, because the mean of its divisors is an integer number (10429560).

Almost surely, 2^55559906 is an apocalyptic number.

55559906 is a deficient number, since it is larger than the sum of its proper divisors (27876574).

55559906 is a wasteful number, since it uses less digits than its factorization.

55559906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32208.

The product of its (nonzero) digits is 303750, while the sum is 44.

The square root of 55559906 is about 7453.8517559715. The cubic root of 55559906 is about 381.5813739559.

It can be divided in two parts, 55559 and 906, that added together give a palindrome (56465).

The spelling of 55559906 in words is "fifty-five million, five hundred fifty-nine thousand, nine hundred six".