545527 has 2 divisors, whose sum is σ = 545528. Its totient is φ = 545526.

The previous prime is 545521. The next prime is 545533. The reversal of 545527 is 725545.

It is a balanced prime because it is at equal distance from previous prime (545521) and next prime (545533).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545527 is a prime.

It is an Ulam number.

545527 is a lucky number.

It is equal to p₄₄₉₈₃ and since 545527 and 44983 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 545495 and 545504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272763 + 272764.

It is an arithmetic number, because the mean of its divisors is an integer number (272764).

2⁵⁴⁵⁵²⁷ is an apocalyptic number.

545527 is a deficient number, since it is larger than the sum of its proper divisors (1).

545527 is an equidigital number, since it uses as much as digits as its factorization.

545527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7000, while the sum is 28.

The square root of 545527 is about 738.5979962063. The cubic root of 545527 is about 81.7094116551.

The spelling of 545527 in words is "five hundred forty-five thousand, five hundred twenty-seven".