55213606 has 8 divisors (see below), whose sum is σ = 94651920. Its totient is φ = 23662968.

The previous prime is 55213597. The next prime is 55213607. The reversal of 55213606 is 60631255.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971901 + ... + 1971928.

It is an arithmetic number, because the mean of its divisors is an integer number (11831490).

Almost surely, 2^55213606 is an apocalyptic number.

55213606 is a deficient number, since it is larger than the sum of its proper divisors (39438314).

55213606 is a wasteful number, since it uses less digits than its factorization.

55213606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943838.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55213606 is about 7430.5858450058. The cubic root of 55213606 is about 380.7869334061.

The spelling of 55213606 in words is "fifty-five million, two hundred thirteen thousand, six hundred six".