53205881 has 2 divisors, whose sum is σ = 53205882. Its totient is φ = 53205880.

The previous prime is 53205853. The next prime is 53205913. The reversal of 53205881 is 18850235.

It is a happy number.

It is an a-pointer prime, because the next prime (53205913) can be obtained adding 53205881 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 3644281 = 7040^2 + 1909^2 .

It is a cyclic number.

It is not a de Polignac number, because 53205881 - 2¹⁰ = 53204857 is a prime.

It is a super-3 number, since 3×53205881³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53205821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26602940 + 26602941.

It is an arithmetic number, because the mean of its divisors is an integer number (26602941).

Almost surely, 2^53205881 is an apocalyptic number.

It is an amenable number.

53205881 is a deficient number, since it is larger than the sum of its proper divisors (1).

53205881 is an equidigital number, since it uses as much as digits as its factorization.

53205881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 53205881 is about 7294.2361491797. The cubic root of 53205881 is about 376.1143292926.

The spelling of 53205881 in words is "fifty-three million, two hundred five thousand, eight hundred eighty-one".