53983861 has 2 divisors, whose sum is σ = 53983862. Its totient is φ = 53983860.

The previous prime is 53983817. The next prime is 53983873. The reversal of 53983861 is 16838935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33281361 + 20702500 = 5769^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 53983861 - 2¹⁷ = 53852789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53983661) 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, 26991930 + 26991931.

It is an arithmetic number, because the mean of its divisors is an integer number (26991931).

Almost surely, 2^53983861 is an apocalyptic number.

It is an amenable number.

53983861 is a deficient number, since it is larger than the sum of its proper divisors (1).

53983861 is an equidigital number, since it uses as much as digits as its factorization.

53983861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 53983861 is about 7347.3710264284. The cubic root of 53983861 is about 377.9386559094.

The spelling of 53983861 in words is "fifty-three million, nine hundred eighty-three thousand, eight hundred sixty-one".