55689527 has 2 divisors, whose sum is σ = 55689528. Its totient is φ = 55689526.

The previous prime is 55689511. The next prime is 55689539. The reversal of 55689527 is 72598655.

55689527 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 55689527 - 2⁴ = 55689511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55689577) 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, 27844763 + 27844764.

It is an arithmetic number, because the mean of its divisors is an integer number (27844764).

Almost surely, 2^55689527 is an apocalyptic number.

55689527 is a deficient number, since it is larger than the sum of its proper divisors (1).

55689527 is an equidigital number, since it uses as much as digits as its factorization.

55689527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756000, while the sum is 47.

The square root of 55689527 is about 7462.5415911739. The cubic root of 55689527 is about 381.8778860066.

The spelling of 55689527 in words is "fifty-five million, six hundred eighty-nine thousand, five hundred twenty-seven".