51551510133 has 8 divisors (see below), whose sum is σ = 68743051488. Its totient is φ = 34363821104.

The previous prime is 51551510117. The next prime is 51551510137. The reversal of 51551510133 is 33101515515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51551510133 - 2⁴ = 51551510117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51551510133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51551510137) 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 7 ways as a sum of consecutive naturals, for example, 931710 + ... + 985487.

It is an arithmetic number, because the mean of its divisors is an integer number (8592881436).

Almost surely, 2^51551510133 is an apocalyptic number.

It is an amenable number.

51551510133 is a deficient number, since it is larger than the sum of its proper divisors (17191541355).

51551510133 is a wasteful number, since it uses less digits than its factorization.

51551510133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926163.

The product of its (nonzero) digits is 5625, while the sum is 30.

The spelling of 51551510133 in words is "fifty-one billion, five hundred fifty-one million, five hundred ten thousand, one hundred thirty-three".