56667888 has 60 divisors (see below), whose sum is σ = 159491280. Its totient is φ = 18782208.

The previous prime is 56667887. The next prime is 56667889. The reversal of 56667888 is 88876665.

56667888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56667887) and next prime (56667889).

It is a super-2 number, since 2×56667888² = 6422499060761088, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667881) 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 11 ways as a sum of consecutive naturals, for example, 26773 + ... + 28811.

It is an arithmetic number, because the mean of its divisors is an integer number (2658188).

Almost surely, 2^56667888 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 56667888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79745640).

56667888 is an abundant number, since it is smaller than the sum of its proper divisors (102823392).

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

56667888 is a wasteful number, since it uses less digits than its factorization.

56667888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2237 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 56667888 is about 7527.8076489772. The cubic root of 56667888 is about 384.1012103010.

The spelling of 56667888 in words is "fifty-six million, six hundred sixty-seven thousand, eight hundred eighty-eight".