155532 has 24 divisors (see below), whose sum is σ = 391216. Its totient is φ = 47808.

The previous prime is 155521. The next prime is 155537. The reversal of 155532 is 235551.

It is a junction number, because it is equal to n+sod(n) for n = 155499 and 155508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155537) 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, 343 + ... + 654.

2¹⁵⁵⁵³² is an apocalyptic number.

155532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155532 is an abundant number, since it is smaller than the sum of its proper divisors (235684).

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

155532 is a wasteful number, since it uses less digits than its factorization.

155532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1015 counting only the distinct ones).

The product of its digits is 750, while the sum is 21.

The square root of 155532 is about 394.3754556257. The cubic root of 155532 is about 53.7782400727.

The spelling of 155532 in words is "one hundred fifty-five thousand, five hundred thirty-two".