1780182225 has 48 divisors (see below), whose sum is σ = 3299342400. Its totient is φ = 940988160.

The previous prime is 1780182191. The next prime is 1780182227. The reversal of 1780182225 is 5222810871.

It is not a de Polignac number, because 1780182225 - 2⁹ = 1780181713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1780182225.

It is not an unprimeable number, because it can be changed into a prime (1780182227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64606 + ... + 87944.

It is an arithmetic number, because the mean of its divisors is an integer number (68736300).

Almost surely, 2^1780182225 is an apocalyptic number.

1780182225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1780182225 is a deficient number, since it is larger than the sum of its proper divisors (1519160175).

1780182225 is a wasteful number, since it uses less digits than its factorization.

1780182225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23471 (or 23460 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 1780182225 is about 42192.2057375530. The cubic root of 1780182225 is about 1211.9596288386.

The spelling of 1780182225 in words is "one billion, seven hundred eighty million, one hundred eighty-two thousand, two hundred twenty-five".