531325506 has 16 divisors (see below), whose sum is σ = 1085261184. Its totient is φ = 173340144.

The previous prime is 531325499. The next prime is 531325517. The reversal of 531325506 is 605523135.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941785 + ... + 942348.

It is an arithmetic number, because the mean of its divisors is an integer number (67828824).

Almost surely, 2^531325506 is an apocalyptic number.

531325506 is an abundant number, since it is smaller than the sum of its proper divisors (553935678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531325506 is a wasteful number, since it uses less digits than its factorization.

531325506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884185.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 531325506 is about 23050.4990401510. The cubic root of 531325506 is about 809.9413187179.

The spelling of 531325506 in words is "five hundred thirty-one million, three hundred twenty-five thousand, five hundred six".