52381247 has 2 divisors, whose sum is σ = 52381248. Its totient is φ = 52381246.

The previous prime is 52381229. The next prime is 52381253. The reversal of 52381247 is 74218325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52381247 - 2⁶ = 52381183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52381207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26190623 + 26190624.

It is an arithmetic number, because the mean of its divisors is an integer number (26190624).

Almost surely, 2^52381247 is an apocalyptic number.

52381247 is a deficient number, since it is larger than the sum of its proper divisors (1).

52381247 is an equidigital number, since it uses as much as digits as its factorization.

52381247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 52381247 is about 7237.4889982645. The cubic root of 52381247 is about 374.1610804888.

The spelling of 52381247 in words is "fifty-two million, three hundred eighty-one thousand, two hundred forty-seven".