4545545393 has 4 divisors (see below), whose sum is σ = 4545704688. Its totient is φ = 4545386100.

The previous prime is 4545545321. The next prime is 4545545429. The reversal of 4545545393 is 3935455454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4545545393 - 2²⁴ = 4528768177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4545545293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23783 + ... + 98268.

It is an arithmetic number, because the mean of its divisors is an integer number (1136426172).

Almost surely, 2^4545545393 is an apocalyptic number.

It is an amenable number.

4545545393 is a deficient number, since it is larger than the sum of its proper divisors (159295).

4545545393 is a wasteful number, since it uses less digits than its factorization.

4545545393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159294.

The product of its digits is 3240000, while the sum is 47.

The square root of 4545545393 is about 67420.6599863870. The cubic root of 4545545393 is about 1656.5148481687.

The spelling of 4545545393 in words is "four billion, five hundred forty-five million, five hundred forty-five thousand, three hundred ninety-three".