541521225 has 36 divisors (see below), whose sum is σ = 1108488576. Its totient is φ = 247551840.

The previous prime is 541521209. The next prime is 541521229. The reversal of 541521225 is 522125145.

541521225 is a `hidden beast` number, since 5 + 415 + 21 + 225 = 666.

It is not a de Polignac number, because 541521225 - 2⁴ = 541521209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (541521229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 170337 + ... + 173486.

Almost surely, 2^541521225 is an apocalyptic number.

It is an amenable number.

541521225 is an abundant number, since it is smaller than the sum of its proper divisors (566967351).

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

541521225 is a wasteful number, since it uses less digits than its factorization.

541521225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343846 (or 343838 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 541521225 is about 23270.6086082853. The cubic root of 541521225 is about 815.0892421127.

The spelling of 541521225 in words is "five hundred forty-one million, five hundred twenty-one thousand, two hundred twenty-five".