4545545452 has 12 divisors (see below), whose sum is σ = 9091090960. Its totient is φ = 1948090896.

The previous prime is 4545545441. The next prime is 4545545467. The reversal of 4545545452 is 2545455454.

It is a happy number.

4545545452 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4545545399 and 4545545408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81170427 + ... + 81170482.

Almost surely, 2^4545545452 is an apocalyptic number.

It is an amenable number.

4545545452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545545452 is a wasteful number, since it uses less digits than its factorization.

4545545452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162340920 (or 162340918 counting only the distinct ones).

The product of its digits is 1600000, while the sum is 43.

The square root of 4545545452 is about 67420.6604239383. The cubic root of 4545545452 is about 1656.5148553357.

The spelling of 4545545452 in words is "four billion, five hundred forty-five million, five hundred forty-five thousand, four hundred fifty-two".