53891418 has 16 divisors (see below), whose sum is σ = 123180480. Its totient is φ = 15397536.

The previous prime is 53891371. The next prime is 53891441. The reversal of 53891418 is 81419835.

53891418 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 7 ways as a sum of consecutive naturals, for example, 641523 + ... + 641606.

It is an arithmetic number, because the mean of its divisors is an integer number (7698780).

Almost surely, 2^53891418 is an apocalyptic number.

53891418 is an abundant number, since it is smaller than the sum of its proper divisors (69289062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53891418 is a wasteful number, since it uses less digits than its factorization.

53891418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283141.

The product of its digits is 34560, while the sum is 39.

The square root of 53891418 is about 7341.0774413570. The cubic root of 53891418 is about 377.7228028487.

The spelling of 53891418 in words is "fifty-three million, eight hundred ninety-one thousand, four hundred eighteen".