55606018 has 8 divisors (see below), whose sum is σ = 89825148. Its totient is φ = 25664304.

The previous prime is 55606007. The next prime is 55606037. The reversal of 55606018 is 81060655.

It can be written as a sum of positive squares in 2 ways, for example, as 46826649 + 8779369 = 6843^2 + 2963^2 .

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, 1069321 + ... + 1069372.

Almost surely, 2^55606018 is an apocalyptic number.

55606018 is a deficient number, since it is larger than the sum of its proper divisors (34219130).

55606018 is a wasteful number, since it uses less digits than its factorization.

55606018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138708.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 55606018 is about 7456.9442803336. The cubic root of 55606018 is about 381.6869093802.

The spelling of 55606018 in words is "fifty-five million, six hundred six thousand, eighteen".