519244949 has 4 divisors (see below), whose sum is σ = 519920940. Its totient is φ = 518568960.

The previous prime is 519244919. The next prime is 519244967. The reversal of 519244949 is 949442915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949442915 = 5 ⋅189888583.

It can be written as a sum of positive squares in 2 ways, for example, as 234243025 + 285001924 = 15305^2 + 16882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-519244949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (519244919) 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, 336842 + ... + 338379.

It is an arithmetic number, because the mean of its divisors is an integer number (129980235).

Almost surely, 2^519244949 is an apocalyptic number.

It is an amenable number.

519244949 is a deficient number, since it is larger than the sum of its proper divisors (675991).

519244949 is an equidigital number, since it uses as much as digits as its factorization.

519244949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675990.

The product of its digits is 466560, while the sum is 47.

The square root of 519244949 is about 22786.9468994861. The cubic root of 519244949 is about 803.7557512607.

The spelling of 519244949 in words is "five hundred nineteen million, two hundred forty-four thousand, nine hundred forty-nine".