531125206 has 4 divisors (see below), whose sum is σ = 796687812. Its totient is φ = 265562602.

The previous prime is 531125197. The next prime is 531125219. The reversal of 531125206 is 602521135.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 132781300 + ... + 132781303.

It is an arithmetic number, because the mean of its divisors is an integer number (199171953).

Almost surely, 2^531125206 is an apocalyptic number.

531125206 is a deficient number, since it is larger than the sum of its proper divisors (265562606).

531125206 is a wasteful number, since it uses less digits than its factorization.

531125206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265562605.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 531125206 is about 23046.1538222759. The cubic root of 531125206 is about 809.8395282369.

The spelling of 531125206 in words is "five hundred thirty-one million, one hundred twenty-five thousand, two hundred six".