155545332 has 24 divisors (see below), whose sum is σ = 363439776. Its totient is φ = 51776928.

The previous prime is 155545331. The next prime is 155545333. The reversal of 155545332 is 233545551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155545331) and next prime (155545333).

It is a junction number, because it is equal to n+sod(n) for n = 155545293 and 155545302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155545331) 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, 523 + ... + 17645.

It is an arithmetic number, because the mean of its divisors is an integer number (15143324).

Almost surely, 2^155545332 is an apocalyptic number.

155545332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155545332 is an abundant number, since it is smaller than the sum of its proper divisors (207894444).

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

155545332 is a wasteful number, since it uses less digits than its factorization.

155545332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17887 (or 17885 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 155545332 is about 12471.7814284889. The cubic root of 155545332 is about 537.7977662900.

It can be divided in two parts, 15554 and 5332, that multiplied together give a palindrome (82933928).

The spelling of 155545332 in words is "one hundred fifty-five million, five hundred forty-five thousand, three hundred thirty-two".