155671225 has 12 divisors (see below), whose sum is σ = 193723216. Its totient is φ = 124091280.

The previous prime is 155671211. The next prime is 155671267. The reversal of 155671225 is 522176551.

It is not a de Polignac number, because 155671225 - 2²⁵ = 122116793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3927 + ... + 18076.

Almost surely, 2^155671225 is an apocalyptic number.

It is an amenable number.

155671225 is a deficient number, since it is larger than the sum of its proper divisors (38051991).

155671225 is a wasteful number, since it uses less digits than its factorization.

155671225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22296 (or 22291 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 155671225 is about 12476.8275214495. The cubic root of 155671225 is about 537.9428187869.

The spelling of 155671225 in words is "one hundred fifty-five million, six hundred seventy-one thousand, two hundred twenty-five".