545589437 has 2 divisors, whose sum is σ = 545589438. Its totient is φ = 545589436.

The previous prime is 545589433. The next prime is 545589479. The reversal of 545589437 is 734985545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542470681 + 3118756 = 23291^2 + 1766^2 .

It is a cyclic number.

It is not a de Polignac number, because 545589437 - 2² = 545589433 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545589431) 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, 272794718 + 272794719.

It is an arithmetic number, because the mean of its divisors is an integer number (272794719).

Almost surely, 2^545589437 is an apocalyptic number.

It is an amenable number.

545589437 is a deficient number, since it is larger than the sum of its proper divisors (1).

545589437 is an equidigital number, since it uses as much as digits as its factorization.

545589437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024000, while the sum is 50.

The square root of 545589437 is about 23357.8560017824. The cubic root of 545589437 is about 817.1252882192.

The spelling of 545589437 in words is "five hundred forty-five million, five hundred eighty-nine thousand, four hundred thirty-seven".