225042545 has 24 divisors (see below), whose sum is σ = 338310504. Its totient is φ = 142442496.

The previous prime is 225042541. The next prime is 225042577. The reversal of 225042545 is 545240522.

225042545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34492129 + 190550416 = 5873^2 + 13804^2 .

It is not a de Polignac number, because 225042545 - 2² = 225042541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225042541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32144 + ... + 38513.

It is an arithmetic number, because the mean of its divisors is an integer number (14096271).

Almost surely, 2^225042545 is an apocalyptic number.

It is an amenable number.

225042545 is a deficient number, since it is larger than the sum of its proper divisors (113267959).

225042545 is a wasteful number, since it uses less digits than its factorization.

225042545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70689 (or 70682 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 225042545 is about 15001.4180996331. The cubic root of 225042545 is about 608.2585330352.

The spelling of 225042545 in words is "two hundred twenty-five million, forty-two thousand, five hundred forty-five".