32128255 has 4 divisors (see below), whose sum is σ = 38553912. Its totient is φ = 25702600.

The previous prime is 32128241. The next prime is 32128277. The reversal of 32128255 is 55282123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55282123 = 13 ⋅4252471.

It is not a de Polignac number, because 32128255 - 2⁵ = 32128223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3212821 + ... + 3212830.

It is an arithmetic number, because the mean of its divisors is an integer number (9638478).

Almost surely, 2^32128255 is an apocalyptic number.

32128255 is a deficient number, since it is larger than the sum of its proper divisors (6425657).

32128255 is an equidigital number, since it uses as much as digits as its factorization.

32128255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425656.

The product of its digits is 4800, while the sum is 28.

The square root of 32128255 is about 5668.1791608946. The cubic root of 32128255 is about 317.9037952457.

The spelling of 32128255 in words is "thirty-two million, one hundred twenty-eight thousand, two hundred fifty-five".