425044405 has 4 divisors (see below), whose sum is σ = 510053292. Its totient is φ = 340035520.

The previous prime is 425044357. The next prime is 425044423. The reversal of 425044405 is 504440524.

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 137334961 + 287709444 = 11719^2 + 16962^2 .

It is not a de Polignac number, because 425044405 - 2⁹ = 425043893 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, 42504436 + ... + 42504445.

It is an arithmetic number, because the mean of its divisors is an integer number (127513323).

Almost surely, 2^425044405 is an apocalyptic number.

It is an amenable number.

425044405 is a deficient number, since it is larger than the sum of its proper divisors (85008887).

425044405 is an equidigital number, since it uses as much as digits as its factorization.

425044405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85008886.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 425044405 is about 20616.6050794014. The cubic root of 425044405 is about 751.8734821155.

Adding to 425044405 its reverse (504440524), we get a palindrome (929484929).

The spelling of 425044405 in words is "four hundred twenty-five million, forty-four thousand, four hundred five".