531151325 has 6 divisors (see below), whose sum is σ = 658627674. Its totient is φ = 424921040.

The previous prime is 531151273. The next prime is 531151333. The reversal of 531151325 is 523151135.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 89605156 + 441546169 = 9466^2 + 21013^2 .

It is not a de Polignac number, because 531151325 - 2⁶ = 531151261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531151294 and 531151303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10623002 + ... + 10623051.

It is an arithmetic number, because the mean of its divisors is an integer number (109771279).

Almost surely, 2^531151325 is an apocalyptic number.

It is an amenable number.

531151325 is a deficient number, since it is larger than the sum of its proper divisors (127476349).

531151325 is a wasteful number, since it uses less digits than its factorization.

531151325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21246063 (or 21246058 counting only the distinct ones).

The product of its digits is 2250, while the sum is 26.

The square root of 531151325 is about 23046.7204825329. The cubic root of 531151325 is about 809.8528031055.

The spelling of 531151325 in words is "five hundred thirty-one million, one hundred fifty-one thousand, three hundred twenty-five".