55568604 has 96 divisors (see below), whose sum is σ = 161115136. Its totient is φ = 14515200.

The previous prime is 55568587. The next prime is 55568609. The reversal of 55568604 is 40686555.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55568609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164724 + ... + 165060.

Almost surely, 2^55568604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55568604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80557568).

55568604 is an abundant number, since it is smaller than the sum of its proper divisors (105546532).

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

55568604 is a wasteful number, since it uses less digits than its factorization.

55568604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 55568604 is about 7454.4351898719. The cubic root of 55568604 is about 381.6012853263.

The spelling of 55568604 in words is "fifty-five million, five hundred sixty-eight thousand, six hundred four".