545545951 has 2 divisors, whose sum is σ = 545545952. Its totient is φ = 545545950.

The previous prime is 545545933. The next prime is 545545991. The reversal of 545545951 is 159545545.

It is a happy number.

545545951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545545951 - 2¹⁷ = 545414879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545545898 and 545545907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545545991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272772975 + 272772976.

It is an arithmetic number, because the mean of its divisors is an integer number (272772976).

Almost surely, 2^545545951 is an apocalyptic number.

545545951 is a deficient number, since it is larger than the sum of its proper divisors (1).

545545951 is an equidigital number, since it uses as much as digits as its factorization.

545545951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 450000, while the sum is 43.

The square root of 545545951 is about 23356.9251186880. The cubic root of 545545951 is about 817.1035780882.

The spelling of 545545951 in words is "five hundred forty-five million, five hundred forty-five thousand, nine hundred fifty-one".