155356225 has 12 divisors (see below), whose sum is σ = 192844800. Its totient is φ = 124154000.

The previous prime is 155356207. The next prime is 155356241. The reversal of 155356225 is 522653551.

It is not a de Polignac number, because 155356225 - 2²³ = 146967617 is a prime.

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, 26076 + ... + 31474.

It is an arithmetic number, because the mean of its divisors is an integer number (16070400).

Almost surely, 2^155356225 is an apocalyptic number.

It is an amenable number.

155356225 is a deficient number, since it is larger than the sum of its proper divisors (37488575).

155356225 is a wasteful number, since it uses less digits than its factorization.

155356225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560 (or 6555 counting only the distinct ones).

The product of its digits is 45000, while the sum is 34.

The square root of 155356225 is about 12464.1977278925. The cubic root of 155356225 is about 537.5797321778.

The spelling of 155356225 in words is "one hundred fifty-five million, three hundred fifty-six thousand, two hundred twenty-five".