509924959 has 4 divisors (see below), whose sum is σ = 509977600. Its totient is φ = 509872320.

The previous prime is 509924897. The next prime is 509924969. The reversal of 509924959 is 959429905.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 509924959 - 2¹⁷ = 509793887 is a prime.

It is a super-2 number, since 2×509924959² = 520046927622303362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509924969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7122 + ... + 32719.

It is an arithmetic number, because the mean of its divisors is an integer number (127494400).

Almost surely, 2^509924959 is an apocalyptic number.

509924959 is a deficient number, since it is larger than the sum of its proper divisors (52641).

509924959 is a wasteful number, since it uses less digits than its factorization.

509924959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52640.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The square root of 509924959 is about 22581.5180844867. The cubic root of 509924959 is about 798.9177861558.

The spelling of 509924959 in words is "five hundred nine million, nine hundred twenty-four thousand, nine hundred fifty-nine".