55515529 has 2 divisors, whose sum is σ = 55515530. Its totient is φ = 55515528.

The previous prime is 55515497. The next prime is 55515533. The reversal of 55515529 is 92551555.

55515529 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 can be written as a sum of positive squares in only one way, i.e., 34539129 + 20976400 = 5877^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 55515529 - 2⁵ = 55515497 is a prime.

It is not a weakly prime, because it can be changed into another prime (55515569) 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, 27757764 + 27757765.

It is an arithmetic number, because the mean of its divisors is an integer number (27757765).

Almost surely, 2^55515529 is an apocalyptic number.

It is an amenable number.

55515529 is a deficient number, since it is larger than the sum of its proper divisors (1).

55515529 is an equidigital number, since it uses as much as digits as its factorization.

55515529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56250, while the sum is 37.

The square root of 55515529 is about 7450.8743782190. The cubic root of 55515529 is about 381.4797542315.

The spelling of 55515529 in words is "fifty-five million, five hundred fifteen thousand, five hundred twenty-nine".