509722209250 has 32 divisors (see below), whose sum is σ = 954257915520. Its totient is φ = 203876503600.

The previous prime is 509722209233. The next prime is 509722209253. The reversal of 509722209250 is 52902227905.

It is a junction number, because it is equal to n+sod(n) for n = 509722209197 and 509722209206.

It is not an unprimeable number, because it can be changed into a prime (509722209253) 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, 4837629 + ... + 4941871.

It is an arithmetic number, because the mean of its divisors is an integer number (29820559860).

Almost surely, 2^509722209250 is an apocalyptic number.

509722209250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

509722209250 is a deficient number, since it is larger than the sum of its proper divisors (444535706270).

509722209250 is a wasteful number, since it uses less digits than its factorization.

509722209250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123819 (or 123809 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 509722209250 in words is "five hundred nine billion, seven hundred twenty-two million, two hundred nine thousand, two hundred fifty".