878255520 has 48 divisors (see below), whose sum is σ = 2766506400. Its totient is φ = 234201344.

The previous prime is 878255519. The next prime is 878255537. The reversal of 878255520 is 25552878.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914370 + ... + 915329.

It is an arithmetic number, because the mean of its divisors is an integer number (57635550).

Almost surely, 2^878255520 is an apocalyptic number.

878255520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

878255520 is an abundant number, since it is smaller than the sum of its proper divisors (1888250880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878255520 is a wasteful number, since it uses less digits than its factorization.

878255520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829717 (or 1829709 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 878255520 is about 29635.3761575587. The cubic root of 878255520 is about 957.6503300927.

The spelling of 878255520 in words is "eight hundred seventy-eight million, two hundred fifty-five thousand, five hundred twenty".