55526689 has 2 divisors, whose sum is σ = 55526690. Its totient is φ = 55526688.

The previous prime is 55526663. The next prime is 55526749. The reversal of 55526689 is 98662555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45792289 + 9734400 = 6767^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 55526689 - 2¹¹ = 55524641 is a prime.

It is not a weakly prime, because it can be changed into another prime (55526629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27763344 + 27763345.

It is an arithmetic number, because the mean of its divisors is an integer number (27763345).

Almost surely, 2^55526689 is an apocalyptic number.

It is an amenable number.

55526689 is a deficient number, since it is larger than the sum of its proper divisors (1).

55526689 is an equidigital number, since it uses as much as digits as its factorization.

55526689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 46.

The square root of 55526689 is about 7451.6232459780. The cubic root of 55526689 is about 381.5053148202.

The spelling of 55526689 in words is "fifty-five million, five hundred twenty-six thousand, six hundred eighty-nine".