405265555459 has 4 divisors (see below), whose sum is σ = 407050866504. Its totient is φ = 403480244416.

The previous prime is 405265555433. The next prime is 405265555531. The reversal of 405265555459 is 954555562504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405265555459 - 2²¹ = 405263458307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405265555759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892655182 + ... + 892655635.

It is an arithmetic number, because the mean of its divisors is an integer number (101762716626).

Almost surely, 2^405265555459 is an apocalyptic number.

405265555459 is a deficient number, since it is larger than the sum of its proper divisors (1785311045).

405265555459 is a wasteful number, since it uses less digits than its factorization.

405265555459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785311044.

The product of its (nonzero) digits is 27000000, while the sum is 55.

The spelling of 405265555459 in words is "four hundred five billion, two hundred sixty-five million, five hundred fifty-five thousand, four hundred fifty-nine".