550403453513 has 8 divisors (see below), whose sum is σ = 560938850568. Its totient is φ = 539873627904.

The previous prime is 550403453489. The next prime is 550403453531. The reversal of 550403453513 is 315354304055.

It can be written as a sum of positive squares in 4 ways, for example, as 285741564304 + 264661889209 = 534548^2 + 514453^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550403453513 - 2⁶ = 550403453449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550403453533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193120 + ... + 1588817.

It is an arithmetic number, because the mean of its divisors is an integer number (70117356321).

Almost surely, 2^550403453513 is an apocalyptic number.

550403453513 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

550403453513 is a deficient number, since it is larger than the sum of its proper divisors (10535397055).

550403453513 is a wasteful number, since it uses less digits than its factorization.

550403453513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785723.

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 550403453513 its reverse (315354304055), we get a palindrome (865757757568).

The spelling of 550403453513 in words is "five hundred fifty billion, four hundred three million, four hundred fifty-three thousand, five hundred thirteen".