54223531 has 2 divisors, whose sum is σ = 54223532. Its totient is φ = 54223530.

The previous prime is 54223529. The next prime is 54223541. The reversal of 54223531 is 13532245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54223531 - 2¹ = 54223529 is a prime.

It is a super-2 number, since 2×54223531² = 5880382628215922, which contains 22 as substring.

Together with 54223529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 54223496 and 54223505.

It is not a weakly prime, because it can be changed into another prime (54223541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27111765 + 27111766.

It is an arithmetic number, because the mean of its divisors is an integer number (27111766).

Almost surely, 2^54223531 is an apocalyptic number.

54223531 is a deficient number, since it is larger than the sum of its proper divisors (1).

54223531 is an equidigital number, since it uses as much as digits as its factorization.

54223531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 25.

The square root of 54223531 is about 7363.6628793013. The cubic root of 54223531 is about 378.4971366397.

Adding to 54223531 its reverse (13532245), we get a palindrome (67755776).

The spelling of 54223531 in words is "fifty-four million, two hundred twenty-three thousand, five hundred thirty-one".