68055552 has 120 divisors (see below), whose sum is σ = 204059856. Its totient is φ = 22643712.

The previous prime is 68055527. The next prime is 68055553. The reversal of 68055552 is 25555086.

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

It is not an unprimeable number, because it can be changed into a prime (68055553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124143 + ... + 124689.

Almost surely, 2^68055552 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 68055552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102029928).

68055552 is an abundant number, since it is smaller than the sum of its proper divisors (136004304).

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

68055552 is an frugal number, since it uses more digits than its factorization.

68055552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 68055552 is about 8249.5788983438. The cubic root of 68055552 is about 408.2766290087.

The spelling of 68055552 in words is "sixty-eight million, fifty-five thousand, five hundred fifty-two".