53205547 has 2 divisors, whose sum is σ = 53205548. Its totient is φ = 53205546.

The previous prime is 53205541. The next prime is 53205557. The reversal of 53205547 is 74550235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53205547 - 2¹⁹ = 52681259 is a prime.

It is not a weakly prime, because it can be changed into another prime (53205541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26602773 + 26602774.

It is an arithmetic number, because the mean of its divisors is an integer number (26602774).

Almost surely, 2^53205547 is an apocalyptic number.

53205547 is a deficient number, since it is larger than the sum of its proper divisors (1).

53205547 is an equidigital number, since it uses as much as digits as its factorization.

53205547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 53205547 is about 7294.2132543544. The cubic root of 53205547 is about 376.1135422715.

The spelling of 53205547 in words is "fifty-three million, two hundred five thousand, five hundred forty-seven".