655354171 has 4 divisors (see below), whose sum is σ = 666097744. Its totient is φ = 644610600.

The previous prime is 655354109. The next prime is 655354177. The reversal of 655354171 is 171453556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655354171 - 2⁹ = 655353659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655354171.

It is not an unprimeable number, because it can be changed into a prime (655354177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5371695 + ... + 5371816.

It is an arithmetic number, because the mean of its divisors is an integer number (166524436).

Almost surely, 2^655354171 is an apocalyptic number.

655354171 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

655354171 is a deficient number, since it is larger than the sum of its proper divisors (10743573).

655354171 is a wasteful number, since it uses less digits than its factorization.

655354171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10743572.

The product of its digits is 63000, while the sum is 37.

The square root of 655354171 is about 25599.8861520906. The cubic root of 655354171 is about 868.6110620520.

The spelling of 655354171 in words is "six hundred fifty-five million, three hundred fifty-four thousand, one hundred seventy-one".