2031522225 has 24 divisors (see below), whose sum is σ = 3467135232. Its totient is φ = 1048526400.

The previous prime is 2031522221. The next prime is 2031522263. The reversal of 2031522225 is 5222251302.

It is not a de Polignac number, because 2031522225 - 2² = 2031522221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031522195 and 2031522204.

It is not an unprimeable number, because it can be changed into a prime (2031522221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434562 + ... + 439211.

It is an arithmetic number, because the mean of its divisors is an integer number (144463968).

Almost surely, 2^2031522225 is an apocalyptic number.

2031522225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2031522225 is a deficient number, since it is larger than the sum of its proper divisors (1435613007).

2031522225 is a wasteful number, since it uses less digits than its factorization.

2031522225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873817 (or 873812 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2031522225 is about 45072.4109073389. The cubic root of 2031522225 is about 1266.5058281083.

Adding to 2031522225 its reverse (5222251302), we get a palindrome (7253773527).

The spelling of 2031522225 in words is "two billion, thirty-one million, five hundred twenty-two thousand, two hundred twenty-five".