531352650 has 48 divisors (see below), whose sum is σ = 1325102688. Its totient is φ = 140904000.

The previous prime is 531352631. The next prime is 531352673. The reversal of 531352650 is 56253135.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 17365 + ... + 36935.

It is an arithmetic number, because the mean of its divisors is an integer number (27606306).

Almost surely, 2^531352650 is an apocalyptic number.

531352650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 531352650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662551344).

531352650 is an abundant number, since it is smaller than the sum of its proper divisors (793750038).

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

531352650 is a wasteful number, since it uses less digits than its factorization.

531352650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19767 (or 19762 counting only the distinct ones).

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

The square root of 531352650 is about 23051.0878268250. The cubic root of 531352650 is about 809.9551110621.

The spelling of 531352650 in words is "five hundred thirty-one million, three hundred fifty-two thousand, six hundred fifty".