53521868 has 12 divisors (see below), whose sum is σ = 94849440. Its totient is φ = 26422032.

The previous prime is 53521837. The next prime is 53521873. The reversal of 53521868 is 86812535.

53521868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 84371 + ... + 85002.

It is an arithmetic number, because the mean of its divisors is an integer number (7904120).

Almost surely, 2^53521868 is an apocalyptic number.

It is an amenable number.

53521868 is a deficient number, since it is larger than the sum of its proper divisors (41327572).

53521868 is a wasteful number, since it uses less digits than its factorization.

53521868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169456 (or 169454 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 53521868 is about 7315.8641321446. The cubic root of 53521868 is about 376.8574347142.

The spelling of 53521868 in words is "fifty-three million, five hundred twenty-one thousand, eight hundred sixty-eight".