155530532 has 12 divisors (see below), whose sum is σ = 272265840. Its totient is φ = 77740296.

The previous prime is 155530511. The next prime is 155530537. The reversal of 155530532 is 235035551.

It is a junction number, because it is equal to n+sod(n) for n = 155530495 and 155530504.

It is not an unprimeable number, because it can be changed into a prime (155530537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20483 + ... + 27029.

It is an arithmetic number, because the mean of its divisors is an integer number (22688820).

Almost surely, 2^155530532 is an apocalyptic number.

It is an amenable number.

155530532 is a deficient number, since it is larger than the sum of its proper divisors (116735308).

155530532 is a wasteful number, since it uses less digits than its factorization.

155530532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490 (or 12488 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 155530532 is about 12471.1880749189. The cubic root of 155530532 is about 537.7807087559.

The spelling of 155530532 in words is "one hundred fifty-five million, five hundred thirty thousand, five hundred thirty-two".