54271643 has 4 divisors (see below), whose sum is σ = 54809088. Its totient is φ = 53734200.

The previous prime is 54271621. The next prime is 54271687. The reversal of 54271643 is 34617245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54271643 - 2⁶ = 54271579 is a prime.

It is a super-2 number, since 2×54271643² = 5890822467838898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54271843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268571 + ... + 268772.

It is an arithmetic number, because the mean of its divisors is an integer number (13702272).

Almost surely, 2^54271643 is an apocalyptic number.

54271643 is a deficient number, since it is larger than the sum of its proper divisors (537445).

54271643 is a wasteful number, since it uses less digits than its factorization.

54271643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537444.

The product of its digits is 20160, while the sum is 32.

The square root of 54271643 is about 7366.9290073951. The cubic root of 54271643 is about 378.6090491288.

Adding to 54271643 its reverse (34617245), we get a palindrome (88888888).

The spelling of 54271643 in words is "fifty-four million, two hundred seventy-one thousand, six hundred forty-three".