163255755 has 32 divisors (see below), whose sum is σ = 281917440. Its totient is φ = 80196480.

The previous prime is 163255711. The next prime is 163255783. The reversal of 163255755 is 557552361.

It is not a de Polignac number, because 163255755 - 2⁶ = 163255691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177186 + ... + 178104.

It is an arithmetic number, because the mean of its divisors is an integer number (8809920).

Almost surely, 2^163255755 is an apocalyptic number.

163255755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163255755 is a deficient number, since it is larger than the sum of its proper divisors (118661685).

163255755 is a wasteful number, since it uses less digits than its factorization.

163255755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851.

The product of its digits is 157500, while the sum is 39.

The square root of 163255755 is about 12777.1575477490. The cubic root of 163255755 is about 546.5411084252.

The spelling of 163255755 in words is "one hundred sixty-three million, two hundred fifty-five thousand, seven hundred fifty-five".