405055579 has 4 divisors (see below), whose sum is σ = 418121920. Its totient is φ = 391989240.

The previous prime is 405055577. The next prime is 405055597. The reversal of 405055579 is 975550504.

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 405055579 - 2¹ = 405055577 is a prime.

It is a super-3 number, since 3×405055579³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405055577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6533124 + ... + 6533185.

It is an arithmetic number, because the mean of its divisors is an integer number (104530480).

Almost surely, 2^405055579 is an apocalyptic number.

405055579 is a deficient number, since it is larger than the sum of its proper divisors (13066341).

405055579 is a wasteful number, since it uses less digits than its factorization.

405055579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13066340.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 405055579 is about 20125.9926214833. The cubic root of 405055579 is about 739.8974650970.

The spelling of 405055579 in words is "four hundred five million, fifty-five thousand, five hundred seventy-nine".