545495947 has 4 divisors (see below), whose sum is σ = 574206280. Its totient is φ = 516785616.

The previous prime is 545495941. The next prime is 545495969. The reversal of 545495947 is 749594545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545495947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545495894 and 545495903.

It is not an unprimeable number, because it can be changed into a prime (545495941) 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 in 3 ways as a sum of consecutive naturals, for example, 14355138 + ... + 14355175.

It is an arithmetic number, because the mean of its divisors is an integer number (143551570).

Almost surely, 2^545495947 is an apocalyptic number.

545495947 is a deficient number, since it is larger than the sum of its proper divisors (28710333).

545495947 is a wasteful number, since it uses less digits than its factorization.

545495947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28710332.

The product of its digits is 4536000, while the sum is 52.

The square root of 545495947 is about 23355.8546621613. The cubic root of 545495947 is about 817.0786124578.

The spelling of 545495947 in words is "five hundred forty-five million, four hundred ninety-five thousand, nine hundred forty-seven".