155055433 has 8 divisors (see below), whose sum is σ = 169097600. Its totient is φ = 141315408.

The previous prime is 155055421. The next prime is 155055437. The reversal of 155055433 is 334550551.

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

It is not a de Polignac number, because 155055433 - 2⁵ = 155055401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155055395 and 155055404.

It is not an unprimeable number, because it can be changed into a prime (155055437) 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, 74463 + ... + 76516.

It is an arithmetic number, because the mean of its divisors is an integer number (21137200).

Almost surely, 2^155055433 is an apocalyptic number.

155055433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155055433 is a deficient number, since it is larger than the sum of its proper divisors (14042167).

155055433 is a wasteful number, since it uses less digits than its factorization.

155055433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151071.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 155055433 is about 12452.1256418332. The cubic root of 155055433 is about 537.2325641276.

The spelling of 155055433 in words is "one hundred fifty-five million, fifty-five thousand, four hundred thirty-three".