155417255 has 16 divisors (see below), whose sum is σ = 213373440. Its totient is φ = 106456992.

The previous prime is 155417243. The next prime is 155417261. The reversal of 155417255 is 552714551.

It is a cyclic number.

It is not a de Polignac number, because 155417255 - 2⁶ = 155417191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42302 + ... + 45828.

It is an arithmetic number, because the mean of its divisors is an integer number (13335840).

Almost surely, 2^155417255 is an apocalyptic number.

155417255 is a deficient number, since it is larger than the sum of its proper divisors (57956185).

155417255 is a wasteful number, since it uses less digits than its factorization.

155417255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798.

The product of its digits is 35000, while the sum is 35.

The square root of 155417255 is about 12466.6456996259. The cubic root of 155417255 is about 537.6501170751.

The spelling of 155417255 in words is "one hundred fifty-five million, four hundred seventeen thousand, two hundred fifty-five".