55066704 has 160 divisors (see below), whose sum is σ = 181702656. Its totient is φ = 13954560.

The previous prime is 55066681. The next prime is 55066709. The reversal of 55066704 is 40766055.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55066709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173554 + ... + 173870.

Almost surely, 2^55066704 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 55066704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90851328).

55066704 is an abundant number, since it is smaller than the sum of its proper divisors (126635952).

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

55066704 is a wasteful number, since it uses less digits than its factorization.

55066704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 55066704 is about 7420.6943071387. The cubic root of 55066704 is about 380.4489246572.

The spelling of 55066704 in words is "fifty-five million, sixty-six thousand, seven hundred four".