53620247 has 2 divisors, whose sum is σ = 53620248. Its totient is φ = 53620246.

The previous prime is 53620243. The next prime is 53620249. The reversal of 53620247 is 74202635.

53620247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53620247 - 2² = 53620243 is a prime.

Together with 53620249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53620243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26810123 + 26810124.

It is an arithmetic number, because the mean of its divisors is an integer number (26810124).

Almost surely, 2^53620247 is an apocalyptic number.

53620247 is a deficient number, since it is larger than the sum of its proper divisors (1).

53620247 is an equidigital number, since it uses as much as digits as its factorization.

53620247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 53620247 is about 7322.5847212579. The cubic root of 53620247 is about 377.0881950012.

The spelling of 53620247 in words is "fifty-three million, six hundred twenty thousand, two hundred forty-seven".