4545445454 has 16 divisors (see below), whose sum is σ = 7439147136. Its totient is φ = 2065793400.

The previous prime is 4545445447. The next prime is 4545445459.

4545445454 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×4545445454² = 41322148750578532232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545445459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188639 + ... + 211365.

It is an arithmetic number, because the mean of its divisors is an integer number (464946696).

Almost surely, 2^4545445454 is an apocalyptic number.

4545445454 is a deficient number, since it is larger than the sum of its proper divisors (2893701682).

4545445454 is a wasteful number, since it uses less digits than its factorization.

4545445454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31831.

The product of its digits is 2560000, while the sum is 44.

The square root of 4545445454 is about 67419.9188222590. The cubic root of 4545445454 is about 1656.5027079569.

The spelling of 4545445454 in words is "four billion, five hundred forty-five million, four hundred forty-five thousand, four hundred fifty-four".