509045975 has 12 divisors (see below), whose sum is σ = 631526544. Its totient is φ = 407037120.

The previous prime is 509045951. The next prime is 509045983. The reversal of 509045975 is 579540905.

It is a happy number.

It is not a de Polignac number, because 509045975 - 2¹⁰ = 509044951 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 67862 + ... + 74988.

It is an arithmetic number, because the mean of its divisors is an integer number (52627212).

Almost surely, 2^509045975 is an apocalyptic number.

509045975 is a deficient number, since it is larger than the sum of its proper divisors (122480569).

509045975 is a wasteful number, since it uses less digits than its factorization.

509045975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994 (or 9989 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 509045975 is about 22562.0472253739. The cubic root of 509045975 is about 798.4584768534.

The spelling of 509045975 in words is "five hundred nine million, forty-five thousand, nine hundred seventy-five".