405043055 has 16 divisors (see below), whose sum is σ = 508617984. Its totient is φ = 309277440.

The previous prime is 405043021. The next prime is 405043069. The reversal of 405043055 is 550340504.

It is not a de Polignac number, because 405043055 - 2⁶ = 405042991 is a prime.

It is a Duffinian number.

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, 6584 + ... + 29213.

It is an arithmetic number, because the mean of its divisors is an integer number (31788624).

Almost surely, 2^405043055 is an apocalyptic number.

405043055 is a deficient number, since it is larger than the sum of its proper divisors (103574929).

405043055 is a wasteful number, since it uses less digits than its factorization.

405043055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35906.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 405043055 is about 20125.6814791450. The cubic root of 405043055 is about 739.8898393358.

Adding to 405043055 its reverse (550340504), we get a palindrome (955383559).

The spelling of 405043055 in words is "four hundred five million, forty-three thousand, fifty-five".