54020939887 has 2 divisors, whose sum is σ = 54020939888. Its totient is φ = 54020939886.

The previous prime is 54020939881. The next prime is 54020939923. The reversal of 54020939887 is 78893902045.

54020939887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54020939887 - 2¹⁹ = 54020415599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54020939881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27010469943 + 27010469944.

It is an arithmetic number, because the mean of its divisors is an integer number (27010469944).

Almost surely, 2^54020939887 is an apocalyptic number.

54020939887 is a deficient number, since it is larger than the sum of its proper divisors (1).

54020939887 is an equidigital number, since it uses as much as digits as its factorization.

54020939887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 54020939887 in words is "fifty-four billion, twenty million, nine hundred thirty-nine thousand, eight hundred eighty-seven".