828825555 has 16 divisors (see below), whose sum is σ = 1326727584. Its totient is φ = 441838080.

The previous prime is 828825553. The next prime is 828825563. The reversal of 828825555 is 555528828.

It is not a de Polignac number, because 828825555 - 2¹ = 828825553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828825553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24825 + ... + 47685.

It is an arithmetic number, because the mean of its divisors is an integer number (82920474).

Almost surely, 2^828825555 is an apocalyptic number.

828825555 is a deficient number, since it is larger than the sum of its proper divisors (497902029).

828825555 is a wasteful number, since it uses less digits than its factorization.

828825555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25286.

The product of its digits is 1280000, while the sum is 48.

The square root of 828825555 is about 28789.3305757532. The cubic root of 828825555 is about 939.3361674184.

The spelling of 828825555 in words is "eight hundred twenty-eight million, eight hundred twenty-five thousand, five hundred fifty-five".