409325855 has 4 divisors (see below), whose sum is σ = 491191032. Its totient is φ = 327460680.

The previous prime is 409325849. The next prime is 409325879. The reversal of 409325855 is 558523904.

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

It is not a de Polignac number, because 409325855 - 2⁸ = 409325599 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 3 ways as a sum of consecutive naturals, for example, 40932581 + ... + 40932590.

It is an arithmetic number, because the mean of its divisors is an integer number (122797758).

Almost surely, 2^409325855 is an apocalyptic number.

409325855 is a deficient number, since it is larger than the sum of its proper divisors (81865177).

409325855 is an equidigital number, since it uses as much as digits as its factorization.

409325855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81865176.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 409325855 is about 20231.8030585512. The cubic root of 409325855 is about 742.4884904140.

The spelling of 409325855 in words is "four hundred nine million, three hundred twenty-five thousand, eight hundred fifty-five".