52666648 has 8 divisors (see below), whose sum is σ = 98749980. Its totient is φ = 26333320.

The previous prime is 52666637. The next prime is 52666667. The reversal of 52666648 is 84666625.

It is a tau number, because it is divible by the number of its divisors (8).

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, 3291658 + ... + 3291673.

Almost surely, 2^52666648 is an apocalyptic number.

It is an amenable number.

52666648 is a deficient number, since it is larger than the sum of its proper divisors (46083332).

52666648 is a wasteful number, since it uses less digits than its factorization.

52666648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583337 (or 6583333 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 52666648 is about 7257.1790662764. The cubic root of 52666648 is about 374.8393931503.

The spelling of 52666648 in words is "fifty-two million, six hundred sixty-six thousand, six hundred forty-eight".