519855242 has 4 divisors (see below), whose sum is σ = 779782866. Its totient is φ = 259927620.

The previous prime is 519855241. The next prime is 519855253. The reversal of 519855242 is 242558915.

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

It can be written as a sum of positive squares in only one way, i.e., 434680801 + 85174441 = 20849^2 + 9229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 519855242.

It is not an unprimeable number, because it can be changed into a prime (519855241) by changing a digit.

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, 129963809 + ... + 129963812.

Almost surely, 2^519855242 is an apocalyptic number.

519855242 is a deficient number, since it is larger than the sum of its proper divisors (259927624).

519855242 is a wasteful number, since it uses less digits than its factorization.

519855242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259927623.

The product of its digits is 144000, while the sum is 41.

The square root of 519855242 is about 22800.3342519359. The cubic root of 519855242 is about 804.0705252772.

The spelling of 519855242 in words is "five hundred nineteen million, eight hundred fifty-five thousand, two hundred forty-two".