550400117 has 2 divisors, whose sum is σ = 550400118. Its totient is φ = 550400116.

The previous prime is 550400111. The next prime is 550400153. The reversal of 550400117 is 711004055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542610436 + 7789681 = 23294^2 + 2791^2 .

It is a cyclic number.

It is not a de Polignac number, because 550400117 - 2¹⁶ = 550334581 is a prime.

It is a super-2 number, since 2×550400117² = 605880577587227378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550400092 and 550400101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550400111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275200058 + 275200059.

It is an arithmetic number, because the mean of its divisors is an integer number (275200059).

Almost surely, 2^550400117 is an apocalyptic number.

It is an amenable number.

550400117 is a deficient number, since it is larger than the sum of its proper divisors (1).

550400117 is an equidigital number, since it uses as much as digits as its factorization.

550400117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 550400117 is about 23460.6077713260. The cubic root of 550400117 is about 819.5199038765.

The spelling of 550400117 in words is "five hundred fifty million, four hundred thousand, one hundred seventeen".