54421231 has 2 divisors, whose sum is σ = 54421232. Its totient is φ = 54421230.

The previous prime is 54421217. The next prime is 54421247. The reversal of 54421231 is 13212445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54421231 - 2¹⁵ = 54388463 is a prime.

It is a super-2 number, since 2×54421231² = 5923340767110722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210615 + 27210616.

It is an arithmetic number, because the mean of its divisors is an integer number (27210616).

Almost surely, 2^54421231 is an apocalyptic number.

54421231 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421231 is an equidigital number, since it uses as much as digits as its factorization.

54421231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 54421231 is about 7377.0746912309. The cubic root of 54421231 is about 378.9565812375.

Adding to 54421231 its reverse (13212445), we get a palindrome (67633676).

The spelling of 54421231 in words is "fifty-four million, four hundred twenty-one thousand, two hundred thirty-one".