55107887 has 2 divisors, whose sum is σ = 55107888. Its totient is φ = 55107886.

The previous prime is 55107853. The next prime is 55107907. The reversal of 55107887 is 78870155.

55107887 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 not a de Polignac number, because 55107887 - 2⁶ = 55107823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55107817) 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, 27553943 + 27553944.

It is an arithmetic number, because the mean of its divisors is an integer number (27553944).

Almost surely, 2^55107887 is an apocalyptic number.

55107887 is a deficient number, since it is larger than the sum of its proper divisors (1).

55107887 is an equidigital number, since it uses as much as digits as its factorization.

55107887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 41.

The square root of 55107887 is about 7423.4686636370. The cubic root of 55107887 is about 380.5437437441.

The spelling of 55107887 in words is "fifty-five million, one hundred seven thousand, eight hundred eighty-seven".