1525442454425 has 24 divisors (see below), whose sum is σ = 1973887710720. Its totient is φ = 1167237244800.

The previous prime is 1525442454397. The next prime is 1525442454469. The reversal of 1525442454425 is 5244542445251.

It is a happy number.

It is not a de Polignac number, because 1525442454425 - 2¹⁰ = 1525442453401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1525442454425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14257880 + ... + 14364470.

It is an arithmetic number, because the mean of its divisors is an integer number (82245321280).

Almost surely, 2^{1525442454425} is an apocalyptic number.

It is an amenable number.

1525442454425 is a deficient number, since it is larger than the sum of its proper divisors (448445256295).

1525442454425 is a wasteful number, since it uses less digits than its factorization.

1525442454425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131513 (or 131508 counting only the distinct ones).

The product of its digits is 5120000, while the sum is 47.

Adding to 1525442454425 its reverse (5244542445251), we get a palindrome (6769984899676).

The spelling of 1525442454425 in words is "one trillion, five hundred twenty-five billion, four hundred forty-two million, four hundred fifty-four thousand, four hundred twenty-five".