52706521 has 8 divisors (see below), whose sum is σ = 60286464. Its totient is φ = 45139200.

The previous prime is 52706483. The next prime is 52706527. The reversal of 52706521 is 12560725.

52706521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52706521 - 2¹¹ = 52704473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52706521.

It is not an unprimeable number, because it can be changed into a prime (52706527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8856 + ... + 13558.

It is an arithmetic number, because the mean of its divisors is an integer number (7535808).

Almost surely, 2^52706521 is an apocalyptic number.

It is an amenable number.

52706521 is a deficient number, since it is larger than the sum of its proper divisors (7579943).

52706521 is a wasteful number, since it uses less digits than its factorization.

52706521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 52706521 is about 7259.9256883249. The cubic root of 52706521 is about 374.9339640757.

The spelling of 52706521 in words is "fifty-two million, seven hundred six thousand, five hundred twenty-one".