505055055540 has 96 divisors (see below), whose sum is σ = 1616564920320. Its totient is φ = 115413388416.

The previous prime is 505055055539. The next prime is 505055055611. The reversal of 505055055540 is 45550550505.

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, 1629469 + ... + 1914491.

It is an arithmetic number, because the mean of its divisors is an integer number (16839217920).

Almost surely, 2^505055055540 is an apocalyptic number.

It is an amenable number.

505055055540 is an abundant number, since it is smaller than the sum of its proper divisors (1111509864780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505055055540 is a wasteful number, since it uses less digits than its factorization.

505055055540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289261 (or 289259 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 505055055540 in words is "five hundred five billion, fifty-five million, fifty-five thousand, five hundred forty".