52681001 has 4 divisors (see below), whose sum is σ = 52714452. Its totient is φ = 52647552.

The previous prime is 52680989. The next prime is 52681009. The reversal of 52681001 is 10018625.

52681001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28079401 + 24601600 = 5299^2 + 4960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52681001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52681009) 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 3 ways as a sum of consecutive naturals, for example, 14240 + ... + 17553.

It is an arithmetic number, because the mean of its divisors is an integer number (13178613).

Almost surely, 2^52681001 is an apocalyptic number.

It is an amenable number.

52681001 is a deficient number, since it is larger than the sum of its proper divisors (33451).

52681001 is a wasteful number, since it uses less digits than its factorization.

52681001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33450.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 52681001 is about 7258.1678817729. The cubic root of 52681001 is about 374.8734411443.

Adding to 52681001 its reverse (10018625), we get a palindrome (62699626).

The spelling of 52681001 in words is "fifty-two million, six hundred eighty-one thousand, one".