2245643253425 has 48 divisors (see below), whose sum is σ = 3291486289728. Its totient is φ = 1498315449600.

The previous prime is 2245643253421. The next prime is 2245643253443. The reversal of 2245643253425 is 5243523465422.

It is a happy number.

It is not a de Polignac number, because 2245643253425 - 2² = 2245643253421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2245643253425.

It is not an unprimeable number, because it can be changed into a prime (2245643253421) 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, 1344122 + ... + 2509571.

It is an arithmetic number, because the mean of its divisors is an integer number (68572631036).

Almost surely, 2^{2245643253425} is an apocalyptic number.

2245643253425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2245643253425 is a deficient number, since it is larger than the sum of its proper divisors (1045843036303).

2245643253425 is a wasteful number, since it uses less digits than its factorization.

2245643253425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853890 (or 3853885 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 47.

The spelling of 2245643253425 in words is "two trillion, two hundred forty-five billion, six hundred forty-three million, two hundred fifty-three thousand, four hundred twenty-five".