55595129 has 2 divisors, whose sum is σ = 55595130. Its totient is φ = 55595128.

The previous prime is 55595119. The next prime is 55595149. The reversal of 55595129 is 92159555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 18079504 = 6125^2 + 4252^2 .

It is a cyclic number.

It is not a de Polignac number, because 55595129 - 2²⁰ = 54546553 is a prime.

It is a super-3 number, since 3×55595129³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (55595119) 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, 27797564 + 27797565.

It is an arithmetic number, because the mean of its divisors is an integer number (27797565).

Almost surely, 2^55595129 is an apocalyptic number.

It is an amenable number.

55595129 is a deficient number, since it is larger than the sum of its proper divisors (1).

55595129 is an equidigital number, since it uses as much as digits as its factorization.

55595129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101250, while the sum is 41.

The square root of 55595129 is about 7456.2141197796. The cubic root of 55595129 is about 381.6619932517.

The spelling of 55595129 in words is "fifty-five million, five hundred ninety-five thousand, one hundred twenty-nine".