155543652 has 120 divisors (see below), whose sum is σ = 467137440. Its totient is φ = 44634240.

The previous prime is 155543623. The next prime is 155543669. The reversal of 155543652 is 256345551.

155543652 is a `hidden beast` number, since 1 + 55 + 543 + 65 + 2 = 666.

It is a super-3 number, since 3×155543652³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 66568 + ... + 68864.

It is an arithmetic number, because the mean of its divisors is an integer number (3892812).

Almost surely, 2^155543652 is an apocalyptic number.

155543652 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 155543652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233568720).

155543652 is an abundant number, since it is smaller than the sum of its proper divisors (311593788).

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

155543652 is a wasteful number, since it uses less digits than its factorization.

155543652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343 (or 2332 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 155543652 is about 12471.7140762607. The cubic root of 155543652 is about 537.7958300838.

The spelling of 155543652 in words is "one hundred fifty-five million, five hundred forty-three thousand, six hundred fifty-two".