155532233 has 8 divisors (see below), whose sum is σ = 170836800. Its totient is φ = 140939568.

The previous prime is 155532227. The next prime is 155532241. The reversal of 155532233 is 332235551.

155532233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155532233 - 2¹⁰ = 155531209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155532196 and 155532205.

It is not an unprimeable number, because it can be changed into a prime (155532203) 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, 177518 + ... + 178391.

It is an arithmetic number, because the mean of its divisors is an integer number (21354600).

Almost surely, 2^155532233 is an apocalyptic number.

It is an amenable number.

155532233 is a deficient number, since it is larger than the sum of its proper divisors (15304567).

155532233 is a wasteful number, since it uses less digits than its factorization.

155532233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355951.

The product of its digits is 13500, while the sum is 29.

The square root of 155532233 is about 12471.2562719239. The cubic root of 155532233 is about 537.7826692749.

Adding to 155532233 its reverse (332235551), we get a palindrome (487767784).

The spelling of 155532233 in words is "one hundred fifty-five million, five hundred thirty-two thousand, two hundred thirty-three".