531541523254225 has 24 divisors (see below), whose sum is σ = 719037951840000. Its totient is φ = 386571762552000.

The previous prime is 531541523254199. The next prime is 531541523254243. The reversal of 531541523254225 is 522452325145135.

It is a happy number.

It is not a de Polignac number, because 531541523254225 - 2⁷ = 531541523254097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17787651 + ... + 37141399.

It is an arithmetic number, because the mean of its divisors is an integer number (29959914660000).

Almost surely, 2^{531541523254225} is an apocalyptic number.

531541523254225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531541523254225 is a deficient number, since it is larger than the sum of its proper divisors (187496428585775).

531541523254225 is a wasteful number, since it uses less digits than its factorization.

531541523254225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19453641 (or 19453636 counting only the distinct ones).

The product of its digits is 7200000, while the sum is 49.

The spelling of 531541523254225 in words is "five hundred thirty-one trillion, five hundred forty-one billion, five hundred twenty-three million, two hundred fifty-four thousand, two hundred twenty-five".