20054687 has 2 divisors, whose sum is σ = 20054688. Its totient is φ = 20054686.

The previous prime is 20054681. The next prime is 20054693. The reversal of 20054687 is 78645002.

It is a balanced prime because it is at equal distance from previous prime (20054681) and next prime (20054693).

It is a cyclic number.

It is not a de Polignac number, because 20054687 - 2⁸ = 20054431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20054681) 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, 10027343 + 10027344.

It is an arithmetic number, because the mean of its divisors is an integer number (10027344).

Almost surely, 2^20054687 is an apocalyptic number.

20054687 is a deficient number, since it is larger than the sum of its proper divisors (1).

20054687 is an equidigital number, since it uses as much as digits as its factorization.

20054687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 20054687 is about 4478.2459735928. The cubic root of 20054687 is about 271.6889420973.

Adding to 20054687 its reverse (78645002), we get a palindrome (98699689).

The spelling of 20054687 in words is "twenty million, fifty-four thousand, six hundred eighty-seven".