155568 has 40 divisors (see below), whose sum is σ = 460288. Its totient is φ = 44352.

The previous prime is 155557. The next prime is 155569. The reversal of 155568 is 865551.

It is a happy number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (155569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105 + ... + 567.

2¹⁵⁵⁵⁶⁸ 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 155568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230144).

155568 is an abundant number, since it is smaller than the sum of its proper divisors (304720).

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

155568 is a wasteful number, since it uses less digits than its factorization.

155568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 475 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 155568 is about 394.4210947706. The cubic root of 155568 is about 53.7823889880.

The spelling of 155568 in words is "one hundred fifty-five thousand, five hundred sixty-eight".