47491265 has 4 divisors (see below), whose sum is σ = 56989524. Its totient is φ = 37993008.

The previous prime is 47491259. The next prime is 47491267. The reversal of 47491265 is 56219474.

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 9840769 + 37650496 = 3137^2 + 6136^2 .

It is a cyclic number.

It is not a de Polignac number, because 47491265 - 2¹⁰ = 47490241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47491267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4749122 + ... + 4749131.

It is an arithmetic number, because the mean of its divisors is an integer number (14247381).

Almost surely, 2^47491265 is an apocalyptic number.

It is an amenable number.

47491265 is a deficient number, since it is larger than the sum of its proper divisors (9498259).

47491265 is an equidigital number, since it uses as much as digits as its factorization.

47491265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9498258.

The product of its digits is 60480, while the sum is 38.

The square root of 47491265 is about 6891.3906434043. The cubic root of 47491265 is about 362.1356211720.

The spelling of 47491265 in words is "forty-seven million, four hundred ninety-one thousand, two hundred sixty-five".