225520541 has 8 divisors (see below), whose sum is σ = 233070264. Its totient is φ = 218068480.

The previous prime is 225520511. The next prime is 225520573. The reversal of 225520541 is 145025522.

It can be written as a sum of positive squares in 4 ways, for example, as 7958041 + 217562500 = 2821^2 + 14750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225520541 - 2²⁶ = 158411677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225520541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225520511) 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, 19706 + ... + 28971.

It is an arithmetic number, because the mean of its divisors is an integer number (29133783).

Almost surely, 2^225520541 is an apocalyptic number.

It is an amenable number.

225520541 is a deficient number, since it is larger than the sum of its proper divisors (7549723).

225520541 is a wasteful number, since it uses less digits than its factorization.

225520541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48831.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 225520541 is about 15017.3413425946. The cubic root of 225520541 is about 608.6888806069.

The spelling of 225520541 in words is "two hundred twenty-five million, five hundred twenty thousand, five hundred forty-one".