53686961 has 2 divisors, whose sum is σ = 53686962. Its totient is φ = 53686960.

The previous prime is 53686949. The next prime is 53687059. The reversal of 53686961 is 16968635.

53686961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47004736 + 6682225 = 6856^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 53686961 - 2¹⁸ = 53424817 is a prime.

It is not a weakly prime, because it can be changed into another prime (53686921) 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, 26843480 + 26843481.

It is an arithmetic number, because the mean of its divisors is an integer number (26843481).

Almost surely, 2^53686961 is an apocalyptic number.

It is an amenable number.

53686961 is a deficient number, since it is larger than the sum of its proper divisors (1).

53686961 is an equidigital number, since it uses as much as digits as its factorization.

53686961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 53686961 is about 7327.1386638988. The cubic root of 53686961 is about 377.2445205003.

The spelling of 53686961 in words is "fifty-three million, six hundred eighty-six thousand, nine hundred sixty-one".