52668428 has 6 divisors (see below), whose sum is σ = 92169756. Its totient is φ = 26334212.

The previous prime is 52668409. The next prime is 52668443. The reversal of 52668428 is 82486625.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583550 + ... + 6583557.

It is an arithmetic number, because the mean of its divisors is an integer number (15361626).

Almost surely, 2^52668428 is an apocalyptic number.

It is an amenable number.

52668428 is a deficient number, since it is larger than the sum of its proper divisors (39501328).

52668428 is a wasteful number, since it uses less digits than its factorization.

52668428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13167111 (or 13167109 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 52668428 is about 7257.3017024236. The cubic root of 52668428 is about 374.8436159784.

The spelling of 52668428 in words is "fifty-two million, six hundred sixty-eight thousand, four hundred twenty-eight".