54236643 has 8 divisors (see below), whose sum is σ = 72518400. Its totient is φ = 36056328.

The previous prime is 54236603. The next prime is 54236657. The reversal of 54236643 is 34663245.

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

It is not a de Polignac number, because 54236643 - 2⁸ = 54236387 is a prime.

It is a super-2 number, since 2×54236643² = 5883226887818898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54236603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24103 + ... + 26256.

It is an arithmetic number, because the mean of its divisors is an integer number (9064800).

Almost surely, 2^54236643 is an apocalyptic number.

54236643 is a deficient number, since it is larger than the sum of its proper divisors (18281757).

54236643 is a wasteful number, since it uses less digits than its factorization.

54236643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50721.

The product of its digits is 51840, while the sum is 33.

The square root of 54236643 is about 7364.5531432667. The cubic root of 54236643 is about 378.5276427957.

Adding to 54236643 its reverse (34663245), we get a palindrome (88899888).

The spelling of 54236643 in words is "fifty-four million, two hundred thirty-six thousand, six hundred forty-three".