415025405 has 4 divisors (see below), whose sum is σ = 498030492. Its totient is φ = 332020320.

The previous prime is 415025399. The next prime is 415025407. The reversal of 415025405 is 504520514.

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

It can be written as a sum of positive squares in 2 ways, for example, as 305760196 + 109265209 = 17486^2 + 10453^2 .

It is a de Polignac number, because none of the positive numbers 2^k-415025405 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 (415025407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41502536 + ... + 41502545.

It is an arithmetic number, because the mean of its divisors is an integer number (124507623).

Almost surely, 2^415025405 is an apocalyptic number.

It is an amenable number.

415025405 is a deficient number, since it is larger than the sum of its proper divisors (83005087).

415025405 is an equidigital number, since it uses as much as digits as its factorization.

415025405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83005086.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 415025405 is about 20372.1723191220. The cubic root of 415025405 is about 745.9188129057.

Adding to 415025405 its reverse (504520514), we get a palindrome (919545919).

The spelling of 415025405 in words is "four hundred fifteen million, twenty-five thousand, four hundred five".