52366921 has 2 divisors, whose sum is σ = 52366922. Its totient is φ = 52366920.

The previous prime is 52366913. The next prime is 52366939. The reversal of 52366921 is 12966325.

52366921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52359696 + 7225 = 7236^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 52366921 - 2³ = 52366913 is a prime.

It is not a weakly prime, because it can be changed into another prime (52366901) 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 as a sum of consecutive naturals, namely, 26183460 + 26183461.

It is an arithmetic number, because the mean of its divisors is an integer number (26183461).

Almost surely, 2^52366921 is an apocalyptic number.

It is an amenable number.

52366921 is a deficient number, since it is larger than the sum of its proper divisors (1).

52366921 is an equidigital number, since it uses as much as digits as its factorization.

52366921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 52366921 is about 7236.4992226905. The cubic root of 52366921 is about 374.1269670056.

The spelling of 52366921 in words is "fifty-two million, three hundred sixty-six thousand, nine hundred twenty-one".