52240091 has 2 divisors, whose sum is σ = 52240092. Its totient is φ = 52240090.

The previous prime is 52240081. The next prime is 52240121. The reversal of 52240091 is 19004225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52240091 - 2¹⁰ = 52239067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52240081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26120045 + 26120046.

It is an arithmetic number, because the mean of its divisors is an integer number (26120046).

Almost surely, 2^52240091 is an apocalyptic number.

52240091 is a deficient number, since it is larger than the sum of its proper divisors (1).

52240091 is an equidigital number, since it uses as much as digits as its factorization.

52240091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52240091 is about 7227.7306950384. The cubic root of 52240091 is about 373.8246840534.

The spelling of 52240091 in words is "fifty-two million, two hundred forty thousand, ninety-one".