54431233 has 2 divisors, whose sum is σ = 54431234. Its totient is φ = 54431232.

The previous prime is 54431213. The next prime is 54431261. The reversal of 54431233 is 33213445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29899024 + 24532209 = 5468^2 + 4953^2 .

It is a cyclic number.

It is not a de Polignac number, because 54431233 - 2⁹ = 54430721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54431198 and 54431207.

It is not a weakly prime, because it can be changed into another prime (54431213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27215616 + 27215617.

It is an arithmetic number, because the mean of its divisors is an integer number (27215617).

Almost surely, 2^54431233 is an apocalyptic number.

It is an amenable number.

54431233 is a deficient number, since it is larger than the sum of its proper divisors (1).

54431233 is an equidigital number, since it uses as much as digits as its factorization.

54431233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 54431233 is about 7377.7525710747. The cubic root of 54431233 is about 378.9797957776.

Adding to 54431233 its reverse (33213445), we get a palindrome (87644678).

The spelling of 54431233 in words is "fifty-four million, four hundred thirty-one thousand, two hundred thirty-three".