5271905 has 4 divisors (see below), whose sum is σ = 6326292. Its totient is φ = 4217520.

The previous prime is 5271901. The next prime is 5271913. The reversal of 5271905 is 5091725.

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 1860496 + 3411409 = 1364^2 + 1847^2 .

It is not a de Polignac number, because 5271905 - 2² = 5271901 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5271901) 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, 527186 + ... + 527195.

It is an arithmetic number, because the mean of its divisors is an integer number (1581573).

Almost surely, 2^5271905 is an apocalyptic number.

It is an amenable number.

5271905 is a deficient number, since it is larger than the sum of its proper divisors (1054387).

5271905 is a wasteful number, since it uses less digits than its factorization.

5271905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054386.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 5271905 is about 2296.0629346775. The cubic root of 5271905 is about 174.0427186257.

The spelling of 5271905 in words is "five million, two hundred seventy-one thousand, nine hundred five".