225612277525 has 12 divisors (see below), whose sum is σ = 285037701732. Its totient is φ = 177084352640.

The previous prime is 225612277523. The next prime is 225612277529. The reversal of 225612277525 is 525772216522.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 33060694276 + 192551583249 = 181826^2 + 438807^2 .

It is not a de Polignac number, because 225612277525 - 2¹ = 225612277523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225612277523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85135384 + ... + 85138033.

It is an arithmetic number, because the mean of its divisors is an integer number (23753141811).

Almost surely, 2^225612277525 is an apocalyptic number.

225612277525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225612277525 is a deficient number, since it is larger than the sum of its proper divisors (59425424207).

225612277525 is a wasteful number, since it uses less digits than its factorization.

225612277525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170273480 (or 170273475 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 46.

The spelling of 225612277525 in words is "two hundred twenty-five billion, six hundred twelve million, two hundred seventy-seven thousand, five hundred twenty-five".