509948854 has 4 divisors (see below), whose sum is σ = 764923284. Its totient is φ = 254974426.

The previous prime is 509948819. The next prime is 509948867. The reversal of 509948854 is 458849905.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127487212 + ... + 127487215.

It is an arithmetic number, because the mean of its divisors is an integer number (191230821).

Almost surely, 2^509948854 is an apocalyptic number.

509948854 is a deficient number, since it is larger than the sum of its proper divisors (254974430).

509948854 is a wasteful number, since it uses less digits than its factorization.

509948854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254974429.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The square root of 509948854 is about 22582.0471614068. The cubic root of 509948854 is about 798.9302650131.

The spelling of 509948854 in words is "five hundred nine million, nine hundred forty-eight thousand, eight hundred fifty-four".