2143224525 has 96 divisors (see below), whose sum is σ = 4111736832. Its totient is φ = 976377600.

The previous prime is 2143224509. The next prime is 2143224539. The reversal of 2143224525 is 5254223412.

It is not a de Polignac number, because 2143224525 - 2⁴ = 2143224509 is a prime.

It is a super-2 number, since 2×2143224525² = 9186822729122951250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2143224492 and 2143224501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 693634 + ... + 696716.

It is an arithmetic number, because the mean of its divisors is an integer number (42830592).

Almost surely, 2^2143224525 is an apocalyptic number.

2143224525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2143224525 is a deficient number, since it is larger than the sum of its proper divisors (1968512307).

2143224525 is a wasteful number, since it uses less digits than its factorization.

2143224525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163 (or 3158 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 2143224525 is about 46294.9729992361. The cubic root of 2143224525 is about 1289.3056626386.

Adding to 2143224525 its reverse (5254223412), we get a palindrome (7397447937).

The spelling of 2143224525 in words is "two billion, one hundred forty-three million, two hundred twenty-four thousand, five hundred twenty-five".