550401504545 has 16 divisors (see below), whose sum is σ = 661047393600. Its totient is φ = 439944323904.

The previous prime is 550401504511. The next prime is 550401504619. The reversal of 550401504545 is 545405104055.

It is a cyclic number.

It is not a de Polignac number, because 550401504545 - 2¹⁰ = 550401503521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550401504499 and 550401504508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31808306 + ... + 31825604.

It is an arithmetic number, because the mean of its divisors is an integer number (41315462100).

Almost surely, 2^550401504545 is an apocalyptic number.

It is an amenable number.

550401504545 is a deficient number, since it is larger than the sum of its proper divisors (110645889055).

550401504545 is a wasteful number, since it uses less digits than its factorization.

550401504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22384.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 550401504545 in words is "five hundred fifty billion, four hundred one million, five hundred four thousand, five hundred forty-five".