509005455855 has 32 divisors (see below), whose sum is σ = 877097543616. Its totient is φ = 250575304704.

The previous prime is 509005455841. The next prime is 509005455877. The reversal of 509005455855 is 558554500905.

It is not a de Polignac number, because 509005455855 - 2³¹ = 506857972207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509005455798 and 509005455807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5120809 + ... + 5219261.

It is an arithmetic number, because the mean of its divisors is an integer number (27409298238).

Almost surely, 2^509005455855 is an apocalyptic number.

509005455855 is a deficient number, since it is larger than the sum of its proper divisors (368092087761).

509005455855 is a wasteful number, since it uses less digits than its factorization.

509005455855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124987.

The product of its (nonzero) digits is 4500000, while the sum is 51.

The spelling of 509005455855 in words is "five hundred nine billion, five million, four hundred fifty-five thousand, eight hundred fifty-five".