531251554025 has 6 divisors (see below), whose sum is σ = 658751927022. Its totient is φ = 425001243200.

The previous prime is 531251553997. The next prime is 531251554063. The reversal of 531251554025 is 520455152135.

It can be written as a sum of positive squares in 3 ways, for example, as 5226277849 + 526025276176 = 72293^2 + 725276^2 .

It is not a de Polignac number, because 531251554025 - 2⁶ = 531251553961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531251554025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10625031056 + ... + 10625031105.

It is an arithmetic number, because the mean of its divisors is an integer number (109791987837).

Almost surely, 2^531251554025 is an apocalyptic number.

It is an amenable number.

531251554025 is a deficient number, since it is larger than the sum of its proper divisors (127500372997).

531251554025 is a wasteful number, since it uses less digits than its factorization.

531251554025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21250062171 (or 21250062166 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 531251554025 in words is "five hundred thirty-one billion, two hundred fifty-one million, five hundred fifty-four thousand, twenty-five".