155530032 has 40 divisors (see below), whose sum is σ = 459184896. Its totient is φ = 44437056.

The previous prime is 155530031. The next prime is 155530033. The reversal of 155530032 is 230035551.

It is an interprime number because it is at equal distance from previous prime (155530031) and next prime (155530033).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 155529984 and 155530011.

It is not an unprimeable number, because it can be changed into a prime (155530031) 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 7 ways as a sum of consecutive naturals, for example, 231108 + ... + 231779.

Almost surely, 2^155530032 is an apocalyptic number.

155530032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155530032 is an abundant number, since it is smaller than the sum of its proper divisors (303654864).

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

155530032 is a wasteful number, since it uses less digits than its factorization.

155530032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462905 (or 462899 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 155530032 is about 12471.1680286972. The cubic root of 155530032 is about 537.7801324690.

Adding to 155530032 its reverse (230035551), we get a palindrome (385565583).

The spelling of 155530032 in words is "one hundred fifty-five million, five hundred thirty thousand, thirty-two".