54232209 has 6 divisors (see below), whose sum is σ = 78335426. Its totient is φ = 36154800.

The previous prime is 54232181. The next prime is 54232223. The reversal of 54232209 is 90223245.

It can be written as a sum of positive squares in only one way, i.e., 35283600 + 18948609 = 5940^2 + 4353^2 .

It is not a de Polignac number, because 54232209 - 2⁵ = 54232177 is a prime.

It is a super-2 number, since 2×54232209² = 5882264986039362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54232259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3012892 + ... + 3012909.

Almost surely, 2^54232209 is an apocalyptic number.

It is an amenable number.

54232209 is a deficient number, since it is larger than the sum of its proper divisors (24103217).

54232209 is a wasteful number, since it uses less digits than its factorization.

54232209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025807 (or 6025804 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 54232209 is about 7364.2521005191. The cubic root of 54232209 is about 378.5173272770.

The spelling of 54232209 in words is "fifty-four million, two hundred thirty-two thousand, two hundred nine".