550513454401313 has 4 divisors (see below), whose sum is σ = 592860643201428. Its totient is φ = 508166265601200.

The previous prime is 550513454401297. The next prime is 550513454401321. The reversal of 550513454401313 is 313104454315055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 251383181284624 + 299130273116689 = 15855068^2 + 17295383^2 .

It is a cyclic number.

It is not a de Polignac number, because 550513454401313 - 2⁴ = 550513454401297 is a prime.

It is a super-2 number, since 2×550513454401313² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550513454401013) 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, 21173594400038 + ... + 21173594400063.

It is an arithmetic number, because the mean of its divisors is an integer number (148215160800357).

Almost surely, 2^{550513454401313} is an apocalyptic number.

It is an amenable number.

550513454401313 is a deficient number, since it is larger than the sum of its proper divisors (42347188800115).

550513454401313 is a wasteful number, since it uses less digits than its factorization.

550513454401313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42347188800114.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 550513454401313 in words is "five hundred fifty trillion, five hundred thirteen billion, four hundred fifty-four million, four hundred one thousand, three hundred thirteen".