53447265 has 12 divisors (see below), whose sum is σ = 92642004. Its totient is φ = 28505184.

The previous prime is 53447257. The next prime is 53447287. The reversal of 53447265 is 56274435.

53447265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17842176 + 35605089 = 4224^2 + 5967^2 .

It is not a de Polignac number, because 53447265 - 2³ = 53447257 is a prime.

It is a super-2 number, since 2×53447265² = 5713220271960450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593814 + ... + 593903.

It is an arithmetic number, because the mean of its divisors is an integer number (7720167).

Almost surely, 2^53447265 is an apocalyptic number.

It is an amenable number.

53447265 is a deficient number, since it is larger than the sum of its proper divisors (39194739).

53447265 is a wasteful number, since it uses less digits than its factorization.

53447265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187728 (or 1187725 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 53447265 is about 7310.7636400037. The cubic root of 53447265 is about 376.6822554264.

The spelling of 53447265 in words is "fifty-three million, four hundred forty-seven thousand, two hundred sixty-five".