53147289 has 12 divisors (see below), whose sum is σ = 76734096. Its totient is φ = 32705712.

The previous prime is 53147267. The next prime is 53147293. The reversal of 53147289 is 98274135.

It is not a de Polignac number, because 53147289 - 2⁸ = 53147033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (53147209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51907 + ... + 52920.

It is an arithmetic number, because the mean of its divisors is an integer number (6394508).

Almost surely, 2^53147289 is an apocalyptic number.

It is an amenable number.

53147289 is a deficient number, since it is larger than the sum of its proper divisors (23586807).

53147289 is a wasteful number, since it uses less digits than its factorization.

53147289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104856 (or 104843 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 53147289 is about 7290.2187209987. The cubic root of 53147289 is about 375.9762155809.

The spelling of 53147289 in words is "fifty-three million, one hundred forty-seven thousand, two hundred eighty-nine".