531273125 has 20 divisors (see below), whose sum is σ = 665346396. Its totient is φ = 424080000.

The previous prime is 531273109. The next prime is 531273157. The reversal of 531273125 is 521372135.

It can be written as a sum of positive squares in 10 ways, for example, as 519065089 + 12208036 = 22783^2 + 3494^2 .

It is not a de Polignac number, because 531273125 - 2⁴ = 531273109 is a prime.

It is a super-2 number, since 2×531273125² = 564502266694531250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 475067 + ... + 476183.

Almost surely, 2^531273125 is an apocalyptic number.

It is an amenable number.

531273125 is a deficient number, since it is larger than the sum of its proper divisors (134073271).

531273125 is an equidigital number, since it uses as much as digits as its factorization.

531273125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898 (or 1883 counting only the distinct ones).

The product of its digits is 6300, while the sum is 29.

The square root of 531273125 is about 23049.3627894569. The cubic root of 531273125 is about 809.9147016819.

The spelling of 531273125 in words is "five hundred thirty-one million, two hundred seventy-three thousand, one hundred twenty-five".