52668121 has 4 divisors (see below), whose sum is σ = 57456144. Its totient is φ = 47880100.

The previous prime is 52668107. The next prime is 52668127. The reversal of 52668121 is 12186625.

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 52668121 - 2⁹ = 52667609 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52668127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393995 + ... + 2394016.

It is an arithmetic number, because the mean of its divisors is an integer number (14364036).

Almost surely, 2^52668121 is an apocalyptic number.

It is an amenable number.

52668121 is a deficient number, since it is larger than the sum of its proper divisors (4788023).

52668121 is a wasteful number, since it uses less digits than its factorization.

52668121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788022.

The product of its digits is 5760, while the sum is 31.

The square root of 52668121 is about 7257.2805512809. The cubic root of 52668121 is about 374.8428876659.

The spelling of 52668121 in words is "fifty-two million, six hundred sixty-eight thousand, one hundred twenty-one".