53388418 has 8 divisors (see below), whose sum is σ = 80817660. Its totient is φ = 26449200.

The previous prime is 53388403. The next prime is 53388421. The reversal of 53388418 is 81488335.

It can be written as a sum of positive squares in 2 ways, for example, as 52461049 + 927369 = 7243^2 + 963^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122233 + ... + 122668.

Almost surely, 2^53388418 is an apocalyptic number.

53388418 is a deficient number, since it is larger than the sum of its proper divisors (27429242).

53388418 is a wasteful number, since it uses less digits than its factorization.

53388418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245012.

The product of its digits is 92160, while the sum is 40.

The square root of 53388418 is about 7306.7378494100. The cubic root of 53388418 is about 376.5439586022.

The spelling of 53388418 in words is "fifty-three million, three hundred eighty-eight thousand, four hundred eighteen".