52449247 has 2 divisors, whose sum is σ = 52449248. Its totient is φ = 52449246.

The previous prime is 52449181. The next prime is 52449263. The reversal of 52449247 is 74294425.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52449247 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 (52449347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26224623 + 26224624.

It is an arithmetic number, because the mean of its divisors is an integer number (26224624).

Almost surely, 2^52449247 is an apocalyptic number.

52449247 is a deficient number, since it is larger than the sum of its proper divisors (1).

52449247 is an equidigital number, since it uses as much as digits as its factorization.

52449247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 52449247 is about 7242.1852365153. The cubic root of 52449247 is about 374.3229192706.

The spelling of 52449247 in words is "fifty-two million, four hundred forty-nine thousand, two hundred forty-seven".