53667768 has 128 divisors (see below), whose sum is σ = 169413120. Its totient is φ = 13762560.

The previous prime is 53667751. The next prime is 53667833. The reversal of 53667768 is 86776635.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208696 + ... + 208952.

It is an arithmetic number, because the mean of its divisors is an integer number (1323540).

Almost surely, 2^53667768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53667768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84706560).

53667768 is an abundant number, since it is smaller than the sum of its proper divisors (115745352).

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

53667768 is a wasteful number, since it uses less digits than its factorization.

53667768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 393 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 53667768 is about 7325.8288268291. The cubic root of 53667768 is about 377.1995603776.

The spelling of 53667768 in words is "fifty-three million, six hundred sixty-seven thousand, seven hundred sixty-eight".