4545545525 has 12 divisors (see below), whose sum is σ = 5650544964. Its totient is φ = 3627360000.

The previous prime is 4545545467. The next prime is 4545545549. The reversal of 4545545525 is 5255455454.

It can be written as a sum of positive squares in 6 ways, for example, as 53597041 + 4491948484 = 7321^2 + 67022^2 .

It is not a de Polignac number, because 4545545525 - 2¹⁶ = 4545479989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216686 + ... + 236735.

It is an arithmetic number, because the mean of its divisors is an integer number (470878747).

Almost surely, 2^4545545525 is an apocalyptic number.

It is an amenable number.

4545545525 is a deficient number, since it is larger than the sum of its proper divisors (1104999439).

4545545525 is a wasteful number, since it uses less digits than its factorization.

4545545525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453832 (or 453827 counting only the distinct ones).

The product of its digits is 2000000, while the sum is 44.

The square root of 4545545525 is about 67420.6609653154. The cubic root of 4545545525 is about 1656.5148642034.

The spelling of 4545545525 in words is "four billion, five hundred forty-five million, five hundred forty-five thousand, five hundred twenty-five".