52649217 has 16 divisors (see below), whose sum is σ = 78120000. Its totient is φ = 35044992.

The previous prime is 52649197. The next prime is 52649249. The reversal of 52649217 is 71294625.

52649217 is a `hidden beast` number, since 5 + 2 + 649 + 2 + 1 + 7 = 666.

It is not a de Polignac number, because 52649217 - 2⁷ = 52649089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52649257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24034 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (4882500).

Almost surely, 2^52649217 is an apocalyptic number.

It is an amenable number.

52649217 is a deficient number, since it is larger than the sum of its proper divisors (25470783).

52649217 is a wasteful number, since it uses less digits than its factorization.

52649217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037 (or 3031 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 52649217 is about 7255.9780181585. The cubic root of 52649217 is about 374.7980352468.

The spelling of 52649217 in words is "fifty-two million, six hundred forty-nine thousand, two hundred seventeen".