531651612 has 48 divisors (see below), whose sum is σ = 1288835072. Its totient is φ = 170389440.

The previous prime is 531651611. The next prime is 531651619. The reversal of 531651612 is 216156135.

It is a self number, because there is not a number n which added to its sum of digits gives 531651612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531651611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53853 + ... + 62955.

Almost surely, 2^531651612 is an apocalyptic number.

It is an amenable number.

531651612 is an abundant number, since it is smaller than the sum of its proper divisors (757183460).

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

531651612 is a wasteful number, since it uses less digits than its factorization.

531651612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298 (or 9296 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 531651612 is about 23057.5716848067. The cubic root of 531651612 is about 810.1069878494.

The spelling of 531651612 in words is "five hundred thirty-one million, six hundred fifty-one thousand, six hundred twelve".