54678551 has 2 divisors, whose sum is σ = 54678552. Its totient is φ = 54678550.

The previous prime is 54678539. The next prime is 54678571. The reversal of 54678551 is 15587645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54678551 - 2¹⁸ = 54416407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54678499 and 54678508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54678571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27339275 + 27339276.

It is an arithmetic number, because the mean of its divisors is an integer number (27339276).

Almost surely, 2^54678551 is an apocalyptic number.

54678551 is a deficient number, since it is larger than the sum of its proper divisors (1).

54678551 is an equidigital number, since it uses as much as digits as its factorization.

54678551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 41.

The square root of 54678551 is about 7394.4946412855. The cubic root of 54678551 is about 379.5529160238.

It can be divided in two parts, 546 and 78551, that added together give a palindrome (79097).

The spelling of 54678551 in words is "fifty-four million, six hundred seventy-eight thousand, five hundred fifty-one".