53553438 has 24 divisors (see below), whose sum is σ = 122140200. Its totient is φ = 16911504.

The previous prime is 53553413. The next prime is 53553439. The reversal of 53553438 is 83435535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53553439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77953 + ... + 78636.

It is an arithmetic number, because the mean of its divisors is an integer number (5089175).

Almost surely, 2^53553438 is an apocalyptic number.

53553438 is an abundant number, since it is smaller than the sum of its proper divisors (68586762).

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

53553438 is a wasteful number, since it uses less digits than its factorization.

53553438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156616 (or 156613 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 53553438 is about 7318.0214539177. The cubic root of 53553438 is about 376.9315168990.

The spelling of 53553438 in words is "fifty-three million, five hundred fifty-three thousand, four hundred thirty-eight".