545325521225 has 6 divisors (see below), whose sum is σ = 676203646350. Its totient is φ = 436260416960.

The previous prime is 545325521219. The next prime is 545325521227. The reversal of 545325521225 is 522125523545.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16966625536 + 528358895689 = 130256^2 + 726883^2 .

It is not a de Polignac number, because 545325521225 - 2¹⁸ = 545325259081 is a prime.

It is a super-3 number, since 3×545325521225³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (545325521227) 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, 10906510400 + ... + 10906510449.

It is an arithmetic number, because the mean of its divisors is an integer number (112700607725).

Almost surely, 2^545325521225 is an apocalyptic number.

It is an amenable number.

545325521225 is a deficient number, since it is larger than the sum of its proper divisors (130878125125).

545325521225 is a wasteful number, since it uses less digits than its factorization.

545325521225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21813020859 (or 21813020854 counting only the distinct ones).

The product of its digits is 600000, while the sum is 41.

The spelling of 545325521225 in words is "five hundred forty-five billion, three hundred twenty-five million, five hundred twenty-one thousand, two hundred twenty-five".