2143252425 has 48 divisors (see below), whose sum is σ = 3727047168. Its totient is φ = 1085260800.

The previous prime is 2143252403. The next prime is 2143252427. The reversal of 2143252425 is 5242523412.

2143252425 = 218² + 219² + ... + 1860².

It is not a de Polignac number, because 2143252425 - 2⁵ = 2143252393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143252392 and 2143252401.

It is not an unprimeable number, because it can be changed into a prime (2143252427) 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, 114529 + ... + 131921.

It is an arithmetic number, because the mean of its divisors is an integer number (77646816).

Almost surely, 2^2143252425 is an apocalyptic number.

2143252425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2143252425 is a deficient number, since it is larger than the sum of its proper divisors (1583794743).

2143252425 is a wasteful number, since it uses less digits than its factorization.

2143252425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490 (or 17485 counting only the distinct ones).

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

The square root of 2143252425 is about 46295.2743268684. The cubic root of 2143252425 is about 1289.3112572418.

Adding to 2143252425 its reverse (5242523412), we get a palindrome (7385775837).

The spelling of 2143252425 in words is "two billion, one hundred forty-three million, two hundred fifty-two thousand, four hundred twenty-five".