55658089 has 2 divisors, whose sum is σ = 55658090. Its totient is φ = 55658088.

The previous prime is 55658041. The next prime is 55658093. The reversal of 55658089 is 98085655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40704400 + 14953689 = 6380^2 + 3867^2 .

It is a cyclic number.

It is not a de Polignac number, because 55658089 - 2¹³ = 55649897 is a prime.

It is a super-2 number, since 2×55658089² = 6195645742263842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55658189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27829044 + 27829045.

It is an arithmetic number, because the mean of its divisors is an integer number (27829045).

Almost surely, 2^55658089 is an apocalyptic number.

It is an amenable number.

55658089 is a deficient number, since it is larger than the sum of its proper divisors (1).

55658089 is an equidigital number, since it uses as much as digits as its factorization.

55658089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 55658089 is about 7460.4349068938. The cubic root of 55658089 is about 381.8060129067.

The spelling of 55658089 in words is "fifty-five million, six hundred fifty-eight thousand, eighty-nine".