523126323621325 has 12 divisors (see below), whose sum is σ = 648681598252660. Its totient is φ = 418497860856960.

The previous prime is 523126323621323. The next prime is 523126323621359.

523126323621325 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 21583624889124 + 501542698732201 = 4645818^2 + 22395149^2 .

It is not a de Polignac number, because 523126323621325 - 2¹ = 523126323621323 is a prime.

It is a super-2 number, since 2×523126323621325² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523126323621323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76611294 + ... + 83159743.

Almost surely, 2^{523126323621325} is an apocalyptic number.

It is an amenable number.

523126323621325 is a deficient number, since it is larger than the sum of its proper divisors (125555274631335).

523126323621325 is a wasteful number, since it uses less digits than its factorization.

523126323621325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159902016 (or 159902011 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 46.

The spelling of 523126323621325 in words is "five hundred twenty-three trillion, one hundred twenty-six billion, three hundred twenty-three million, six hundred twenty-one thousand, three hundred twenty-five".