155528 has 8 divisors (see below), whose sum is σ = 291630. Its totient is φ = 77760.

The previous prime is 155521. The next prime is 155537. The reversal of 155528 is 825551.

155528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 9604 = 382^2 + 98^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 155497 and 155506.

It is not an unprimeable number, because it can be changed into a prime (155521) by changing a digit.

155528 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9713 + ... + 9728.

2¹⁵⁵⁵²⁸ is an apocalyptic number.

It is an amenable number.

155528 is a deficient number, since it is larger than the sum of its proper divisors (136102).

155528 is a wasteful number, since it uses less digits than its factorization.

155528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19447 (or 19443 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 155528 is about 394.3703842836. The cubic root of 155528 is about 53.7777790426. Note that the first 5 decimals are identical.

The spelling of 155528 in words is "one hundred fifty-five thousand, five hundred twenty-eight".