55530529 has 2 divisors, whose sum is σ = 55530530. Its totient is φ = 55530528.

The previous prime is 55530511. The next prime is 55530577. The reversal of 55530529 is 92503555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39087504 + 16443025 = 6252^2 + 4055^2 .

It is a cyclic number.

It is not a de Polignac number, because 55530529 - 2⁹ = 55530017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55530494 and 55530503.

It is not a weakly prime, because it can be changed into another prime (55530029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765264 + 27765265.

It is an arithmetic number, because the mean of its divisors is an integer number (27765265).

Almost surely, 2^55530529 is an apocalyptic number.

It is an amenable number.

55530529 is a deficient number, since it is larger than the sum of its proper divisors (1).

55530529 is an equidigital number, since it uses as much as digits as its factorization.

55530529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33750, while the sum is 34.

The square root of 55530529 is about 7451.8809035035. The cubic root of 55530529 is about 381.5141090695.

The spelling of 55530529 in words is "fifty-five million, five hundred thirty thousand, five hundred twenty-nine".