4025135545 has 4 divisors (see below), whose sum is σ = 4830162660. Its totient is φ = 3220108432.

The previous prime is 4025135537. The next prime is 4025135549. The reversal of 4025135545 is 5455315204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1865116969 + 2160018576 = 43187^2 + 46476^2 .

It is a cyclic number.

It is not a de Polignac number, because 4025135545 - 2³ = 4025135537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4025135545.

It is not an unprimeable number, because it can be changed into a prime (4025135549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402513550 + ... + 402513559.

It is an arithmetic number, because the mean of its divisors is an integer number (1207540665).

Almost surely, 2^4025135545 is an apocalyptic number.

It is an amenable number.

4025135545 is a deficient number, since it is larger than the sum of its proper divisors (805027115).

4025135545 is an equidigital number, since it uses as much as digits as its factorization.

4025135545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805027114.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 4025135545 is about 63443.9559375044. The cubic root of 4025135545 is about 1590.7191273882.

The spelling of 4025135545 in words is "four billion, twenty-five million, one hundred thirty-five thousand, five hundred forty-five".