55346887 has 2 divisors, whose sum is σ = 55346888. Its totient is φ = 55346886.

The previous prime is 55346833. The next prime is 55346909. The reversal of 55346887 is 78864355.

55346887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55346887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55346387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27673443 + 27673444.

It is an arithmetic number, because the mean of its divisors is an integer number (27673444).

Almost surely, 2^55346887 is an apocalyptic number.

55346887 is a deficient number, since it is larger than the sum of its proper divisors (1).

55346887 is an equidigital number, since it uses as much as digits as its factorization.

55346887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The square root of 55346887 is about 7439.5488438480. The cubic root of 55346887 is about 381.0930830726.

It can be divided in two parts, 5534 and 6887, that added together give a palindrome (12421).

The spelling of 55346887 in words is "fifty-five million, three hundred forty-six thousand, eight hundred eighty-seven".