163025055 has 24 divisors (see below), whose sum is σ = 293044752. Its totient is φ = 86946048.

The previous prime is 163025047. The next prime is 163025059. The reversal of 163025055 is 550520361.

163025055 is a `hidden beast` number, since 1 + 630 + 25 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 163025055 - 2³ = 163025047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163025059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65874 + ... + 68303.

It is an arithmetic number, because the mean of its divisors is an integer number (12210198).

Almost surely, 2^163025055 is an apocalyptic number.

163025055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163025055 is a deficient number, since it is larger than the sum of its proper divisors (130019697).

163025055 is an equidigital number, since it uses as much as digits as its factorization.

163025055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134197 (or 134185 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 163025055 is about 12768.1265266287. The cubic root of 163025055 is about 546.2835443097.

The spelling of 163025055 in words is "one hundred sixty-three million, twenty-five thousand, fifty-five".