828255550 has 24 divisors (see below), whose sum is σ = 1555817832. Its totient is φ = 328020000.

The previous prime is 828255523. The next prime is 828255559. The reversal of 828255550 is 55552828.

It is a happy number.

It is a super-2 number, since 2×828255550² = 1372014512211605000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828255559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76956 + ... + 87055.

It is an arithmetic number, because the mean of its divisors is an integer number (64825743).

Almost surely, 2^828255550 is an apocalyptic number.

828255550 is a deficient number, since it is larger than the sum of its proper divisors (727562282).

828255550 is a wasteful number, since it uses less digits than its factorization.

828255550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164124 (or 164119 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 40.

The square root of 828255550 is about 28779.4292855157. The cubic root of 828255550 is about 939.1207826900.

The spelling of 828255550 in words is "eight hundred twenty-eight million, two hundred fifty-five thousand, five hundred fifty".