55563606 has 48 divisors (see below), whose sum is σ = 139546368. Its totient is φ = 15649200.

The previous prime is 55563589. The next prime is 55563671. The reversal of 55563606 is 60636555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5841 + ... + 12051.

It is an arithmetic number, because the mean of its divisors is an integer number (2907216).

Almost surely, 2^55563606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55563606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69773184).

55563606 is an abundant number, since it is smaller than the sum of its proper divisors (83982762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55563606 is a wasteful number, since it uses less digits than its factorization.

55563606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6297 (or 6294 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 55563606 is about 7454.0999456675. The cubic root of 55563606 is about 381.5898442111.

It can be divided in two parts, 55563 and 606, that added together give a square (56169 = 237²).

The spelling of 55563606 in words is "fifty-five million, five hundred sixty-three thousand, six hundred six".