5204905 has 4 divisors (see below), whose sum is σ = 6245892. Its totient is φ = 4163920.

The previous prime is 5204897. The next prime is 5204911. The reversal of 5204905 is 5094025.

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 2903616 + 2301289 = 1704^2 + 1517^2 .

It is not a de Polignac number, because 5204905 - 2³ = 5204897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5204905.

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, 520486 + ... + 520495.

It is an arithmetic number, because the mean of its divisors is an integer number (1561473).

Almost surely, 2^5204905 is an apocalyptic number.

It is an amenable number.

5204905 is a deficient number, since it is larger than the sum of its proper divisors (1040987).

5204905 is a wasteful number, since it uses less digits than its factorization.

5204905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040986.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 5204905 is about 2281.4260890943. The cubic root of 5204905 is about 173.3022770625.

The spelling of 5204905 in words is "five million, two hundred four thousand, nine hundred five".