875252778 has 32 divisors (see below), whose sum is σ = 1773182400. Its totient is φ = 287991936.

The previous prime is 875252747. The next prime is 875252779. The reversal of 875252778 is 877252578.

It is a self number, because there is not a number n which added to its sum of digits gives 875252778.

It is not an unprimeable number, because it can be changed into a prime (875252779) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 182718 + ... + 187446.

It is an arithmetic number, because the mean of its divisors is an integer number (55411950).

Almost surely, 2^875252778 is an apocalyptic number.

875252778 is an abundant number, since it is smaller than the sum of its proper divisors (897929622).

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

875252778 is a wasteful number, since it uses less digits than its factorization.

875252778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126.

The product of its digits is 2195200, while the sum is 51.

The square root of 875252778 is about 29584.6713350005. The cubic root of 875252778 is about 956.5576866933.

The spelling of 875252778 in words is "eight hundred seventy-five million, two hundred fifty-two thousand, seven hundred seventy-eight".