52239091 has 2 divisors, whose sum is σ = 52239092. Its totient is φ = 52239090.

The previous prime is 52239071. The next prime is 52239101. The reversal of 52239091 is 19093225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52239091 - 2⁹ = 52238579 is a prime.

It is not a weakly prime, because it can be changed into another prime (52239071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26119545 + 26119546.

It is an arithmetic number, because the mean of its divisors is an integer number (26119546).

Almost surely, 2^52239091 is an apocalyptic number.

52239091 is a deficient number, since it is larger than the sum of its proper divisors (1).

52239091 is an equidigital number, since it uses as much as digits as its factorization.

52239091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 52239091 is about 7227.6615167010. The cubic root of 52239091 is about 373.8222987393.

The spelling of 52239091 in words is "fifty-two million, two hundred thirty-nine thousand, ninety-one".