55668060 has 120 divisors (see below), whose sum is σ = 199620960. Its totient is φ = 12721536.

The previous prime is 55668049. The next prime is 55668077. The reversal of 55668060 is 6086655.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8886 + ... + 13794.

It is an arithmetic number, because the mean of its divisors is an integer number (1663508).

Almost surely, 2^55668060 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 55668060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99810480).

55668060 is an abundant number, since it is smaller than the sum of its proper divisors (143952900).

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

55668060 is a wasteful number, since it uses less digits than its factorization.

55668060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937 (or 4926 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 55668060 is about 7461.1031355960. The cubic root of 55668060 is about 381.8288113924.

The spelling of 55668060 in words is "fifty-five million, six hundred sixty-eight thousand, sixty".