54868687 has 2 divisors, whose sum is σ = 54868688. Its totient is φ = 54868686.

The previous prime is 54868633. The next prime is 54868753. The reversal of 54868687 is 78686845.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54868687 - 2¹⁹ = 54344399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54868607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27434343 + 27434344.

It is an arithmetic number, because the mean of its divisors is an integer number (27434344).

Almost surely, 2^54868687 is an apocalyptic number.

54868687 is a deficient number, since it is larger than the sum of its proper divisors (1).

54868687 is an equidigital number, since it uses as much as digits as its factorization.

54868687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 52.

The square root of 54868687 is about 7407.3400758977. The cubic root of 54868687 is about 379.9923521083.

It can be divided in two parts, 54868 and 687, that added together give a palindrome (55555).

The spelling of 54868687 in words is "fifty-four million, eight hundred sixty-eight thousand, six hundred eighty-seven".