52289428 has 6 divisors (see below), whose sum is σ = 91506506. Its totient is φ = 26144712.

The previous prime is 52289411. The next prime is 52289431. The reversal of 52289428 is 82498225.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42667024 + 9622404 = 6532^2 + 3102^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6536175 + ... + 6536182.

Almost surely, 2^52289428 is an apocalyptic number.

It is an amenable number.

52289428 is a deficient number, since it is larger than the sum of its proper divisors (39217078).

52289428 is a wasteful number, since it uses less digits than its factorization.

52289428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072361 (or 13072359 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 52289428 is about 7231.1429248771. The cubic root of 52289428 is about 373.9423305134.

The spelling of 52289428 in words is "fifty-two million, two hundred eighty-nine thousand, four hundred twenty-eight".