2202145525 has 6 divisors (see below), whose sum is σ = 2730660482. Its totient is φ = 1761716400.

The previous prime is 2202145523. The next prime is 2202145529. The reversal of 2202145525 is 5255412022.

It can be written as a sum of positive squares in 3 ways, for example, as 397085329 + 1805060196 = 19927^2 + 42486^2 .

It is not a de Polignac number, because 2202145525 - 2¹ = 2202145523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202145493 and 2202145502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202145523) 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 5 ways as a sum of consecutive naturals, for example, 44042886 + ... + 44042935.

Almost surely, 2^2202145525 is an apocalyptic number.

2202145525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2202145525 is a deficient number, since it is larger than the sum of its proper divisors (528514957).

2202145525 is an equidigital number, since it uses as much as digits as its factorization.

2202145525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88085831 (or 88085826 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2202145525 is about 46927.0233980379. The cubic root of 2202145525 is about 1301.0141051599.

Adding to 2202145525 its reverse (5255412022), we get a palindrome (7457557547).

The spelling of 2202145525 in words is "two billion, two hundred two million, one hundred forty-five thousand, five hundred twenty-five".