8783788225 has 12 divisors (see below), whose sum is σ = 11532597804. Its totient is φ = 6613675520.

The previous prime is 8783788193. The next prime is 8783788229. The reversal of 8783788225 is 5228873878.

It can be written as a sum of positive squares in 6 ways, for example, as 343323841 + 8440464384 = 18529^2 + 91872^2 .

It is not a de Polignac number, because 8783788225 - 2⁵ = 8783788193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8783788225.

It is not an unprimeable number, because it can be changed into a prime (8783788229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10333444 + ... + 10334293.

It is an arithmetic number, because the mean of its divisors is an integer number (961049817).

Almost surely, 2^8783788225 is an apocalyptic number.

8783788225 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8783788225 is a deficient number, since it is larger than the sum of its proper divisors (2748809579).

8783788225 is a wasteful number, since it uses less digits than its factorization.

8783788225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20667764 (or 20667759 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 58.

The square root of 8783788225 is about 93721.8663119765. The cubic root of 8783788225 is about 2063.2916415017.

The spelling of 8783788225 in words is "eight billion, seven hundred eighty-three million, seven hundred eighty-eight thousand, two hundred twenty-five".