52041021 has 4 divisors (see below), whose sum is σ = 69388032. Its totient is φ = 34694012.

The previous prime is 52041001. The next prime is 52041023. The reversal of 52041021 is 12014025.

52041021 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52041021 - 2⁹ = 52040509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52041023) 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, 8673501 + ... + 8673506.

It is an arithmetic number, because the mean of its divisors is an integer number (17347008).

Almost surely, 2^52041021 is an apocalyptic number.

It is an amenable number.

52041021 is a deficient number, since it is larger than the sum of its proper divisors (17347011).

52041021 is a wasteful number, since it uses less digits than its factorization.

52041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17347010.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52041021 is about 7213.9462848014. The cubic root of 52041021 is about 373.3492381794.

Adding to 52041021 its reverse (12014025), we get a palindrome (64055046).

The spelling of 52041021 in words is "fifty-two million, forty-one thousand, twenty-one".