115551504442225 has 12 divisors (see below), whose sum is σ = 143342564422860. Its totient is φ = 92403333286400.

The previous prime is 115551504442219. The next prime is 115551504442277. The reversal of 115551504442225 is 522244405155511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 132407926641 + 115419096515584 = 363879^2 + 10743328^2 .

It is not a de Polignac number, because 115551504442225 - 2¹⁵ = 115551504409457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946694440 + ... + 946816489.

It is an arithmetic number, because the mean of its divisors is an integer number (11945213701905).

Almost surely, 2^{115551504442225} is an apocalyptic number.

It is an amenable number.

115551504442225 is a deficient number, since it is larger than the sum of its proper divisors (27791059980635).

115551504442225 is a wasteful number, since it uses less digits than its factorization.

115551504442225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893513380 (or 1893513375 counting only the distinct ones).

The product of its (nonzero) digits is 1600000, while the sum is 46.

Adding to 115551504442225 its reverse (522244405155511), we get a palindrome (637795909597736).

The spelling of 115551504442225 in words is "one hundred fifteen trillion, five hundred fifty-one billion, five hundred four million, four hundred forty-two thousand, two hundred twenty-five".