509617042 has 16 divisors (see below), whose sum is σ = 834300000. Its totient is φ = 231538240.

The previous prime is 509617027. The next prime is 509617051. The reversal of 509617042 is 240716905.

It is a junction number, because it is equal to n+sod(n) for n = 509616989 and 509617007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64209 + ... + 71707.

It is an arithmetic number, because the mean of its divisors is an integer number (52143750).

Almost surely, 2^509617042 is an apocalyptic number.

509617042 is a deficient number, since it is larger than the sum of its proper divisors (324682958).

509617042 is a wasteful number, since it uses less digits than its factorization.

509617042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 509617042 is about 22574.6991563564. The cubic root of 509617042 is about 798.7569455616.

The spelling of 509617042 in words is "five hundred nine million, six hundred seventeen thousand, forty-two".