509225979 has 8 divisors (see below), whose sum is σ = 679374400. Its totient is φ = 339280776.

The previous prime is 509225953. The next prime is 509226001. The reversal of 509225979 is 979522905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 509225979 - 2⁷ = 509225851 is a prime.

It is a super-2 number, since 2×509225979² = 518622195377016882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509224979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44857 + ... + 55050.

It is an arithmetic number, because the mean of its divisors is an integer number (84921800).

Almost surely, 2^509225979 is an apocalyptic number.

509225979 is a deficient number, since it is larger than the sum of its proper divisors (170148421).

509225979 is a wasteful number, since it uses less digits than its factorization.

509225979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101609.

The product of its (nonzero) digits is 510300, while the sum is 48.

The square root of 509225979 is about 22566.0359611519. The cubic root of 509225979 is about 798.5525801951.

The spelling of 509225979 in words is "five hundred nine million, two hundred twenty-five thousand, nine hundred seventy-nine".