51887520133488 has 240 divisors, whose sum is σ = 166476731950080. Its totient is φ = 15450377529600.

The previous prime is 51887520133459. The next prime is 51887520133489. The reversal of 51887520133488 is 88433102578815.

51887520133488 is a `hidden beast` number, since 5 + 1 + 8 + 87 + 5 + 201 + 3 + 348 + 8 = 666.

It is a super-2 number, since 2×51887520133488² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51887520133489) 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 47 ways as a sum of consecutive naturals, for example, 9199818 + ... + 13726313.

It is an arithmetic number, because the mean of its divisors is an integer number (693653049792).

Almost surely, 2^{51887520133488} is an apocalyptic number.

It is an amenable number.

51887520133488 is an abundant number, since it is smaller than the sum of its proper divisors (114589211816592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51887520133488 is a wasteful number, since it uses less digits than its factorization.

51887520133488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22926205 (or 22926180 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 63.

The spelling of 51887520133488 in words is "fifty-one trillion, eight hundred eighty-seven billion, five hundred twenty million, one hundred thirty-three thousand, four hundred eighty-eight".