51033415545 has 24 divisors (see below), whose sum is σ = 101094766656. Its totient is φ = 23329561248.

The previous prime is 51033415483. The next prime is 51033415597. The reversal of 51033415545 is 54551433015.

51033415545 is a `hidden beast` number, since 5 + 103 + 3 + 4 + 1 + 5 + 545 = 666.

It is not a de Polignac number, because 51033415545 - 2⁶ = 51033415481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81005107 + ... + 81005736.

It is an arithmetic number, because the mean of its divisors is an integer number (4212281944).

Almost surely, 2^51033415545 is an apocalyptic number.

It is an amenable number.

51033415545 is a deficient number, since it is larger than the sum of its proper divisors (50061351111).

51033415545 is a wasteful number, since it uses less digits than its factorization.

51033415545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162010861 (or 162010858 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 51033415545 in words is "fifty-one billion, thirty-three million, four hundred fifteen thousand, five hundred forty-five".