155555230 has 32 divisors (see below), whose sum is σ = 287800128. Its totient is φ = 60499200.

The previous prime is 155555221. The next prime is 155555237. The reversal of 155555230 is 32555551.

It is a happy number.

155555230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155555192 and 155555201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155555237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188599 + ... + 189421.

It is an arithmetic number, because the mean of its divisors is an integer number (8993754).

Almost surely, 2^155555230 is an apocalyptic number.

155555230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155555230 is a deficient number, since it is larger than the sum of its proper divisors (132244898).

155555230 is a wasteful number, since it uses less digits than its factorization.

155555230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 155555230 is about 12472.1782379823. The cubic root of 155555230 is about 537.8091734884.

The spelling of 155555230 in words is "one hundred fifty-five million, five hundred fifty-five thousand, two hundred thirty".