55689701 has 2 divisors, whose sum is σ = 55689702. Its totient is φ = 55689700.

The previous prime is 55689691. The next prime is 55689713. The reversal of 55689701 is 10798655.

55689701 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 can be written as a sum of positive squares in only one way, i.e., 47128225 + 8561476 = 6865^2 + 2926^2 .

It is a cyclic number.

It is not a de Polignac number, because 55689701 - 2¹⁸ = 55427557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55689721) 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, 27844850 + 27844851.

It is an arithmetic number, because the mean of its divisors is an integer number (27844851).

Almost surely, 2^55689701 is an apocalyptic number.

It is an amenable number.

55689701 is a deficient number, since it is larger than the sum of its proper divisors (1).

55689701 is an equidigital number, since it uses as much as digits as its factorization.

55689701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 55689701 is about 7462.5532493913. The cubic root of 55689701 is about 381.8782837276.

The spelling of 55689701 in words is "fifty-five million, six hundred eighty-nine thousand, seven hundred one".