55066536 has 96 divisors (see below), whose sum is σ = 180498240. Its totient is φ = 14805504.

The previous prime is 55066507. The next prime is 55066537. The reversal of 55066536 is 63566055.

It is a happy number.

55066536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55066536.

It is not an unprimeable number, because it can be changed into a prime (55066537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5355 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (1880190).

Almost surely, 2^55066536 is an apocalyptic number.

55066536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55066536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90249120).

55066536 is an abundant number, since it is smaller than the sum of its proper divisors (125431704).

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

55066536 is a wasteful number, since it uses less digits than its factorization.

55066536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463 (or 6456 counting only the distinct ones).

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

The square root of 55066536 is about 7420.6829874345. The cubic root of 55066536 is about 380.4485377599.

The spelling of 55066536 in words is "fifty-five million, sixty-six thousand, five hundred thirty-six".