52640571 has 8 divisors (see below), whose sum is σ = 70608384. Its totient is φ = 34883240.

The previous prime is 52640543. The next prime is 52640587. The reversal of 52640571 is 17504625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52640571 - 2⁷ = 52640443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52640531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52035 + ... + 53036.

It is an arithmetic number, because the mean of its divisors is an integer number (8826048).

Almost surely, 2^52640571 is an apocalyptic number.

52640571 is a deficient number, since it is larger than the sum of its proper divisors (17967813).

52640571 is a wasteful number, since it uses less digits than its factorization.

52640571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105241.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 52640571 is about 7255.3822090914. The cubic root of 52640571 is about 374.7775178083. Note that the first 3 decimals are identical.

The spelling of 52640571 in words is "fifty-two million, six hundred forty thousand, five hundred seventy-one".