54785638 has 8 divisors (see below), whose sum is σ = 82355832. Its totient is φ = 27333696.

The previous prime is 54785581. The next prime is 54785681. The reversal of 54785638 is 83658745.

54785638 is nontrivially palindromic in base 13.

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

It is a super-2 number, since 2×54785638² = 6002932262134088, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28395 + ... + 30262.

It is an arithmetic number, because the mean of its divisors is an integer number (10294479).

Almost surely, 2^54785638 is an apocalyptic number.

54785638 is a deficient number, since it is larger than the sum of its proper divisors (27570194).

54785638 is a wasteful number, since it uses less digits than its factorization.

54785638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59126.

The product of its digits is 806400, while the sum is 46.

The square root of 54785638 is about 7401.7320945843. The cubic root of 54785638 is about 379.8005370556.

The spelling of 54785638 in words is "fifty-four million, seven hundred eighty-five thousand, six hundred thirty-eight".