405775055 has 16 divisors (see below), whose sum is σ = 560501760. Its totient is φ = 276240672.

The previous prime is 405775021. The next prime is 405775061. The reversal of 405775055 is 550577504.

It is a cyclic number.

It is not a de Polignac number, because 405775055 - 2²⁰ = 404726479 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, 36839 + ... + 46568.

It is an arithmetic number, because the mean of its divisors is an integer number (35031360).

Almost surely, 2^405775055 is an apocalyptic number.

405775055 is a deficient number, since it is larger than the sum of its proper divisors (154726705).

405775055 is a wasteful number, since it uses less digits than its factorization.

405775055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83558.

The product of its (nonzero) digits is 122500, while the sum is 38.

The square root of 405775055 is about 20143.8589897765. The cubic root of 405775055 is about 740.3352845139.

The spelling of 405775055 in words is "four hundred five million, seven hundred seventy-five thousand, fifty-five".