418725085 has 4 divisors (see below), whose sum is σ = 502470108. Its totient is φ = 334980064.

The previous prime is 418725077. The next prime is 418725089. The reversal of 418725085 is 580527814.

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 288354361 + 130370724 = 16981^2 + 11418^2 .

It is a cyclic number.

It is not a de Polignac number, because 418725085 - 2³ = 418725077 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418725089) 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, 41872504 + ... + 41872513.

It is an arithmetic number, because the mean of its divisors is an integer number (125617527).

Almost surely, 2^418725085 is an apocalyptic number.

It is an amenable number.

418725085 is a deficient number, since it is larger than the sum of its proper divisors (83745023).

418725085 is an equidigital number, since it uses as much as digits as its factorization.

418725085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83745022.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 418725085 is about 20462.7731502844. The cubic root of 418725085 is about 748.1287186616.

The spelling of 418725085 in words is "four hundred eighteen million, seven hundred twenty-five thousand, eighty-five".