225301524121521 has 6 divisors (see below), whose sum is σ = 325435534842210. Its totient is φ = 150201016081008.

The previous prime is 225301524121517. The next prime is 225301524121547. The reversal of 225301524121521 is 125121425103522.

225301524121521 is a `hidden beast` number, since 2 + 2 + 5 + 3 + 0 + 1 + 5 + 2 + 4 + 121 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 148353276961296 + 76948247160225 = 12180036^2 + 8772015^2 .

It is not a de Polignac number, because 225301524121521 - 2² = 225301524121517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225301524321521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12516751340076 + ... + 12516751340093.

It is an arithmetic number, because the mean of its divisors is an integer number (54239255807035).

Almost surely, 2^{225301524121521} is an apocalyptic number.

It is an amenable number.

225301524121521 is a deficient number, since it is larger than the sum of its proper divisors (100134010720689).

225301524121521 is a wasteful number, since it uses less digits than its factorization.

225301524121521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25033502680175 (or 25033502680172 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 225301524121521 in words is "two hundred twenty-five trillion, three hundred one billion, five hundred twenty-four million, one hundred twenty-one thousand, five hundred twenty-one".