2187224825 has 12 divisors (see below), whose sum is σ = 2715832128. Its totient is φ = 1747410000.

The previous prime is 2187224821. The next prime is 2187224869. The reversal of 2187224825 is 5284227812.

It is not a de Polignac number, because 2187224825 - 2² = 2187224821 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2187224821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40301 + ... + 77450.

It is an arithmetic number, because the mean of its divisors is an integer number (226319344).

Almost surely, 2^2187224825 is an apocalyptic number.

2187224825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2187224825 is a deficient number, since it is larger than the sum of its proper divisors (528607303).

2187224825 is a wasteful number, since it uses less digits than its factorization.

2187224825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118504 (or 118499 counting only the distinct ones).

The product of its digits is 143360, while the sum is 41.

The square root of 2187224825 is about 46767.7754976651. The cubic root of 2187224825 is about 1298.0690910063.

The spelling of 2187224825 in words is "two billion, one hundred eighty-seven million, two hundred twenty-four thousand, eight hundred twenty-five".