509863982925 has 36 divisors (see below), whose sum is σ = 926575973120. Its totient is φ = 247206775200.

The previous prime is 509863982923. The next prime is 509863982951. The reversal of 509863982925 is 529289368905.

It is not a de Polignac number, because 509863982925 - 2¹ = 509863982923 is a prime.

It is a super-2 number, since 2×509863982925² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509863982923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28082605 + ... + 28100754.

Almost surely, 2^509863982925 is an apocalyptic number.

509863982925 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

509863982925 is a deficient number, since it is larger than the sum of its proper divisors (416711990195).

509863982925 is a wasteful number, since it uses less digits than its factorization.

509863982925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56183394 (or 56183378 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 66.

The spelling of 509863982925 in words is "five hundred nine billion, eight hundred sixty-three million, nine hundred eighty-two thousand, nine hundred twenty-five".