52288769 has 24 divisors (see below), whose sum is σ = 60082560. Its totient is φ = 45409728.

The previous prime is 52288763. The next prime is 52288777. The reversal of 52288769 is 96788225.

52288769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-52288769 is a prime.

It is a super-2 number, since 2×52288769² = 5468230727070722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (52288763) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 230234 + ... + 230460.

It is an arithmetic number, because the mean of its divisors is an integer number (2503440).

Almost surely, 2^52288769 is an apocalyptic number.

It is an amenable number.

52288769 is a deficient number, since it is larger than the sum of its proper divisors (7793791).

52288769 is a wasteful number, since it uses less digits than its factorization.

52288769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 316 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 52288769 is about 7231.0973579395. The cubic root of 52288769 is about 373.9407595838.

The spelling of 52288769 in words is "fifty-two million, two hundred eighty-eight thousand, seven hundred sixty-nine".