54105631 has 2 divisors, whose sum is σ = 54105632. Its totient is φ = 54105630.

The previous prime is 54105613. The next prime is 54105659. The reversal of 54105631 is 13650145.

Together with previous prime (54105613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54105631 - 2⁹ = 54105119 is a prime.

It is a super-2 number, since 2×54105631² = 5854838611816322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54105596 and 54105605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54105671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27052815 + 27052816.

It is an arithmetic number, because the mean of its divisors is an integer number (27052816).

Almost surely, 2^54105631 is an apocalyptic number.

54105631 is a deficient number, since it is larger than the sum of its proper divisors (1).

54105631 is an equidigital number, since it uses as much as digits as its factorization.

54105631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 54105631 is about 7355.6529961656. The cubic root of 54105631 is about 378.2226113320. Note that the first 3 decimals are identical.

Adding to 54105631 its reverse (13650145), we get a palindrome (67755776).

The spelling of 54105631 in words is "fifty-four million, one hundred five thousand, six hundred thirty-one".