531213222134025 has 144 divisors (see below), whose sum is σ = 988286236704000. Its totient is φ = 272555424967680.

The previous prime is 531213222133999. The next prime is 531213222134081. The reversal of 531213222134025 is 520431222312135.

531213222134025 is a `hidden beast` number, since 5 + 3 + 1 + 2 + 1 + 32 + 2 + 213 + 402 + 5 = 666.

It is not a de Polignac number, because 531213222134025 - 2¹⁵ = 531213222101257 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6207387037 + ... + 6207472613.

It is an arithmetic number, because the mean of its divisors is an integer number (6863098866000).

Almost surely, 2^{531213222134025} is an apocalyptic number.

It is an amenable number.

531213222134025 is a deficient number, since it is larger than the sum of its proper divisors (457073014569975).

531213222134025 is a wasteful number, since it uses less digits than its factorization.

531213222134025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95648 (or 95640 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 531213222134025 in words is "five hundred thirty-one trillion, two hundred thirteen billion, two hundred twenty-two million, one hundred thirty-four thousand, twenty-five".