1328022555 has 16 divisors (see below), whose sum is σ = 2126015520. Its totient is φ = 707885568.

The previous prime is 1328022551. The next prime is 1328022557. The reversal of 1328022555 is 5552208231.

It is not a de Polignac number, because 1328022555 - 2² = 1328022551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1328022551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4461 + ... + 51729.

It is an arithmetic number, because the mean of its divisors is an integer number (132875970).

Almost surely, 2^1328022555 is an apocalyptic number.

1328022555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1328022555 is a deficient number, since it is larger than the sum of its proper divisors (797992965).

1328022555 is a wasteful number, since it uses less digits than its factorization.

1328022555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49150.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 1328022555 is about 36442.0437818737. The cubic root of 1328022555 is about 1099.1791548366.

The spelling of 1328022555 in words is "one billion, three hundred twenty-eight million, twenty-two thousand, five hundred fifty-five".