52649566 has 4 divisors (see below), whose sum is σ = 78974352. Its totient is φ = 26324782.

The previous prime is 52649533. The next prime is 52649567. The reversal of 52649566 is 66594625.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52649567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13162390 + ... + 13162393.

It is an arithmetic number, because the mean of its divisors is an integer number (19743588).

Almost surely, 2^52649566 is an apocalyptic number.

52649566 is a deficient number, since it is larger than the sum of its proper divisors (26324786).

52649566 is a wasteful number, since it uses less digits than its factorization.

52649566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26324785.

The product of its digits is 388800, while the sum is 43.

The square root of 52649566 is about 7256.0020672544. The cubic root of 52649566 is about 374.7988633961.

The spelling of 52649566 in words is "fifty-two million, six hundred forty-nine thousand, five hundred sixty-six".