155034225 has 18 divisors (see below), whose sum is σ = 277683926. Its totient is φ = 82684800.

The previous prime is 155034199. The next prime is 155034233. The reversal of 155034225 is 522430551.

It is a happy number.

155034225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 34012224 + 121022001 = 5832^2 + 11001^2 .

It is not a de Polignac number, because 155034225 - 2⁷ = 155034097 is a prime.

It is a super-2 number, since 2×155034225² = 48071221842701250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 344296 + ... + 344745.

Almost surely, 2^155034225 is an apocalyptic number.

155034225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155034225 is a deficient number, since it is larger than the sum of its proper divisors (122649701).

155034225 is a wasteful number, since it uses less digits than its factorization.

155034225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689057 (or 689049 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 155034225 is about 12451.2740311986. The cubic root of 155034225 is about 537.2080693443.

Adding to 155034225 its reverse (522430551), we get a palindrome (677464776).

The spelling of 155034225 in words is "one hundred fifty-five million, thirty-four thousand, two hundred twenty-five".