45131555311025 has 12 divisors (see below), whose sum is σ = 55964822743452. Its totient is φ = 36104151243840.

The previous prime is 45131555311013. The next prime is 45131555311027. The reversal of 45131555311025 is 52011355513154.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1015497582961 + 44116057728064 = 1007719^2 + 6641992^2 .

It is not a de Polignac number, because 45131555311025 - 2²⁰ = 45131554262449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45131555311027) 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, 26482274 + ... + 28134923.

It is an arithmetic number, because the mean of its divisors is an integer number (4663735228621).

Almost surely, 2^{45131555311025} is an apocalyptic number.

It is an amenable number.

45131555311025 is a deficient number, since it is larger than the sum of its proper divisors (10833267432427).

45131555311025 is a wasteful number, since it uses less digits than its factorization.

45131555311025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54650260 (or 54650255 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 45131555311025 in words is "forty-five trillion, one hundred thirty-one billion, five hundred fifty-five million, three hundred eleven thousand, twenty-five".