155542332 has 48 divisors (see below), whose sum is σ = 400724352. Its totient is φ = 46562880.

The previous prime is 155542301. The next prime is 155542351. The reversal of 155542332 is 233245551.

It is a self number, because there is not a number n which added to its sum of digits gives 155542332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3858 + ... + 18054.

It is an arithmetic number, because the mean of its divisors is an integer number (8348424).

Almost surely, 2^155542332 is an apocalyptic number.

155542332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155542332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200362176).

155542332 is an abundant number, since it is smaller than the sum of its proper divisors (245182020).

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

155542332 is a wasteful number, since it uses less digits than its factorization.

155542332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14298 (or 14296 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 155542332 is about 12471.6611563977. The cubic root of 155542332 is about 537.7943087692.

Adding to 155542332 its reverse (233245551), we get a palindrome (388787883).

The spelling of 155542332 in words is "one hundred fifty-five million, five hundred forty-two thousand, three hundred thirty-two".