52942921 has 4 divisors (see below), whose sum is σ = 52967572. Its totient is φ = 52918272.

The previous prime is 52942909. The next prime is 52942963. The reversal of 52942921 is 12924925.

52942921 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 6702921 + 46240000 = 2589^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 52942921 - 2¹³ = 52934729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52942121) 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, 8760 + ... + 13513.

It is an arithmetic number, because the mean of its divisors is an integer number (13241893).

Almost surely, 2^52942921 is an apocalyptic number.

It is an amenable number.

52942921 is a deficient number, since it is larger than the sum of its proper divisors (24651).

52942921 is a wasteful number, since it uses less digits than its factorization.

52942921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650.

The product of its digits is 12960, while the sum is 34.

The square root of 52942921 is about 7276.1886314196. The cubic root of 52942921 is about 375.4936810514.

The spelling of 52942921 in words is "fifty-two million, nine hundred forty-two thousand, nine hundred twenty-one".