52666091 has 2 divisors, whose sum is σ = 52666092. Its totient is φ = 52666090.

The previous prime is 52666057. The next prime is 52666093. The reversal of 52666091 is 19066625.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52666091 - 2⁶ = 52666027 is a prime.

Together with 52666093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52666093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26333045 + 26333046.

It is an arithmetic number, because the mean of its divisors is an integer number (26333046).

Almost surely, 2^52666091 is an apocalyptic number.

52666091 is a deficient number, since it is larger than the sum of its proper divisors (1).

52666091 is an equidigital number, since it uses as much as digits as its factorization.

52666091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 52666091 is about 7257.1406903821. The cubic root of 52666091 is about 374.8380717176.

The spelling of 52666091 in words is "fifty-two million, six hundred sixty-six thousand, ninety-one".