505005055405 has 16 divisors (see below), whose sum is σ = 616070266560. Its totient is φ = 397348906752.

The previous prime is 505005055391. The next prime is 505005055453. The reversal of 505005055405 is 504550500505.

It is a cyclic number.

It is not a de Polignac number, because 505005055405 - 2³⁷ = 367566101933 is a prime.

It is a congruent number.

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, 3321084 + ... + 3469813.

It is an arithmetic number, because the mean of its divisors is an integer number (38504391660).

Almost surely, 2^505005055405 is an apocalyptic number.

It is an amenable number.

505005055405 is a deficient number, since it is larger than the sum of its proper divisors (111065211155).

505005055405 is a wasteful number, since it uses less digits than its factorization.

505005055405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6791148.

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 505005055405 in words is "five hundred five billion, five million, fifty-five thousand, four hundred five".