53521966 has 8 divisors (see below), whose sum is σ = 83773584. Its totient is φ = 25597440.

The previous prime is 53521939. The next prime is 53521973. The reversal of 53521966 is 66912535.

53521966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 581715 + ... + 581806.

It is an arithmetic number, because the mean of its divisors is an integer number (10471698).

Almost surely, 2^53521966 is an apocalyptic number.

53521966 is a deficient number, since it is larger than the sum of its proper divisors (30251618).

53521966 is a wasteful number, since it uses less digits than its factorization.

53521966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163546.

The product of its digits is 48600, while the sum is 37.

The square root of 53521966 is about 7315.8708299149. The cubic root of 53521966 is about 376.8576647261.

The spelling of 53521966 in words is "fifty-three million, five hundred twenty-one thousand, nine hundred sixty-six".