531723650 has 24 divisors (see below), whose sum is σ = 996134160. Its totient is φ = 211156560.

The previous prime is 531723649. The next prime is 531723659. The reversal of 531723650 is 56327135.

It is not an unprimeable number, because it can be changed into a prime (531723659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31304 + ... + 45203.

It is an arithmetic number, because the mean of its divisors is an integer number (41505590).

Almost surely, 2^531723650 is an apocalyptic number.

531723650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

531723650 is a deficient number, since it is larger than the sum of its proper divisors (464410510).

531723650 is a wasteful number, since it uses less digits than its factorization.

531723650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76658 (or 76653 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 531723650 is about 23059.1337651699. The cubic root of 531723650 is about 810.1435756262.

The spelling of 531723650 in words is "five hundred thirty-one million, seven hundred twenty-three thousand, six hundred fifty".