54631231 has 2 divisors, whose sum is σ = 54631232. Its totient is φ = 54631230.

The previous prime is 54631201. The next prime is 54631237. The reversal of 54631231 is 13213645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54631231 - 2⁷ = 54631103 is a prime.

It is a super-2 number, since 2×54631231² = 5969142801150722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54631196 and 54631205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54631237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27315615 + 27315616.

It is an arithmetic number, because the mean of its divisors is an integer number (27315616).

Almost surely, 2^54631231 is an apocalyptic number.

54631231 is a deficient number, since it is larger than the sum of its proper divisors (1).

54631231 is an equidigital number, since it uses as much as digits as its factorization.

54631231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 54631231 is about 7391.2942709650. The cubic root of 54631231 is about 379.4433933239.

Adding to 54631231 its reverse (13213645), we get a palindrome (67844876).

The spelling of 54631231 in words is "fifty-four million, six hundred thirty-one thousand, two hundred thirty-one".