878200025 has 24 divisors (see below), whose sum is σ = 1156124664. Its totient is φ = 659456000.

The previous prime is 878199989. The next prime is 878200049. The reversal of 878200025 is 520002878.

It can be written as a sum of positive squares in 12 ways, for example, as 440896 + 877759129 = 664^2 + 29627^2 .

It is not a de Polignac number, because 878200025 - 2⁸ = 878199769 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 878199964 and 878200000.

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 23 ways as a sum of consecutive naturals, for example, 167849 + ... + 173001.

It is an arithmetic number, because the mean of its divisors is an integer number (48171861).

Almost surely, 2^878200025 is an apocalyptic number.

878200025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

878200025 is a deficient number, since it is larger than the sum of its proper divisors (277924639).

878200025 is a wasteful number, since it uses less digits than its factorization.

878200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5581 (or 5576 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 878200025 is about 29634.4398462330. The cubic root of 878200025 is about 957.6301590744.

The spelling of 878200025 in words is "eight hundred seventy-eight million, two hundred thousand, twenty-five".