509954047 has 4 divisors (see below), whose sum is σ = 510241840. Its totient is φ = 509666256.

The previous prime is 509954041. The next prime is 509954077. The reversal of 509954047 is 740459905.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 509954047 - 2¹¹ = 509951999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 509953994 and 509954012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509954041) 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, 141222 + ... + 144787.

It is an arithmetic number, because the mean of its divisors is an integer number (127560460).

Almost surely, 2^509954047 is an apocalyptic number.

509954047 is a deficient number, since it is larger than the sum of its proper divisors (287793).

509954047 is a wasteful number, since it uses less digits than its factorization.

509954047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287792.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 509954047 is about 22582.1621418322. The cubic root of 509954047 is about 798.9329769391.

The spelling of 509954047 in words is "five hundred nine million, nine hundred fifty-four thousand, forty-seven".