53961866 has 16 divisors (see below), whose sum is σ = 95696640. Its totient is φ = 22328880.

The previous prime is 53961851. The next prime is 53961883. The reversal of 53961866 is 66816935.

53961866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 66050 + ... + 66861.

It is an arithmetic number, because the mean of its divisors is an integer number (5981040).

Almost surely, 2^53961866 is an apocalyptic number.

53961866 is a deficient number, since it is larger than the sum of its proper divisors (41734774).

53961866 is a wasteful number, since it uses less digits than its factorization.

53961866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132949.

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

The square root of 53961866 is about 7345.8740800534. The cubic root of 53961866 is about 377.8873202583.

The spelling of 53961866 in words is "fifty-three million, nine hundred sixty-one thousand, eight hundred sixty-six".