405055025423 has 16 divisors (see below), whose sum is σ = 410955264000. Its totient is φ = 399201892992.

The previous prime is 405055025399. The next prime is 405055025443. The reversal of 405055025423 is 324520550504.

It is a cyclic number.

It is not a de Polignac number, because 405055025423 - 2³⁶ = 336335548687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405055025443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22928768 + ... + 22946426.

It is an arithmetic number, because the mean of its divisors is an integer number (25684704000).

Almost surely, 2^405055025423 is an apocalyptic number.

405055025423 is a deficient number, since it is larger than the sum of its proper divisors (5900238577).

405055025423 is a wasteful number, since it uses less digits than its factorization.

405055025423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18974.

The product of its (nonzero) digits is 120000, while the sum is 35.

Adding to 405055025423 its reverse (324520550504), we get a palindrome (729575575927).

The spelling of 405055025423 in words is "four hundred five billion, fifty-five million, twenty-five thousand, four hundred twenty-three".