51153025545 has 12 divisors (see below), whose sum is σ = 88665244356. Its totient is φ = 27281613600.

The previous prime is 51153025543. The next prime is 51153025577. The reversal of 51153025545 is 54552035115.

51153025545 is a `hidden beast` number, since 51 + 1 + 53 + 0 + 2 + 554 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8338794489 + 42814231056 = 91317^2 + 206916^2 .

It is not a de Polignac number, because 51153025545 - 2¹ = 51153025543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51153025543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568366906 + ... + 568366995.

It is an arithmetic number, because the mean of its divisors is an integer number (7388770363).

Almost surely, 2^51153025545 is an apocalyptic number.

It is an amenable number.

51153025545 is a deficient number, since it is larger than the sum of its proper divisors (37512218811).

51153025545 is a wasteful number, since it uses less digits than its factorization.

51153025545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136733912 (or 1136733909 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 51153025545 in words is "fifty-one billion, one hundred fifty-three million, twenty-five thousand, five hundred forty-five".