531740670525 has 36 divisors (see below), whose sum is σ = 954490848532. Its totient is φ = 282974411520.

The previous prime is 531740670523. The next prime is 531740670557. The reversal of 531740670525 is 525076047135.

It is a happy number.

531740670525 is a `hidden beast` number, since 5 + 3 + 17 + 40 + 6 + 70 + 525 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 2191925124 + 529548745401 = 46818^2 + 727701^2 .

It is not a de Polignac number, because 531740670525 - 2¹ = 531740670523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531740670523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2482834 + ... + 2688483.

Almost surely, 2^531740670525 is an apocalyptic number.

It is an amenable number.

531740670525 is a deficient number, since it is larger than the sum of its proper divisors (422750178007).

531740670525 is a wasteful number, since it uses less digits than its factorization.

531740670525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171790 (or 5171782 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 45.

The spelling of 531740670525 in words is "five hundred thirty-one billion, seven hundred forty million, six hundred seventy thousand, five hundred twenty-five".