55216606 has 8 divisors (see below), whose sum is σ = 86426064. Its totient is φ = 26407920.

The previous prime is 55216597. The next prime is 55216633. The reversal of 55216606 is 60661255.

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

It is a congruent number.

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, 600135 + ... + 600226.

It is an arithmetic number, because the mean of its divisors is an integer number (10803258).

Almost surely, 2^55216606 is an apocalyptic number.

55216606 is a deficient number, since it is larger than the sum of its proper divisors (31209458).

55216606 is a wasteful number, since it uses less digits than its factorization.

55216606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200386.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55216606 is about 7430.7877105997. The cubic root of 55216606 is about 380.7938298953.

The spelling of 55216606 in words is "fifty-five million, two hundred sixteen thousand, six hundred six".