51536550887560 has 192 divisors, whose sum is σ = 119820163507200. Its totient is φ = 19946473896960.

The previous prime is 51536550887537. The next prime is 51536550887611. The reversal of 51536550887560 is 6578805563515.

It is a super-2 number, since 2×51536550887560² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51536550887492 and 51536550887501.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3257057809 + ... + 3257073631.

It is an arithmetic number, because the mean of its divisors is an integer number (624063351600).

Almost surely, 2^{51536550887560} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51536550887560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59910081753600).

51536550887560 is an abundant number, since it is smaller than the sum of its proper divisors (68283612619640).

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

51536550887560 is a wasteful number, since it uses less digits than its factorization.

51536550887560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16312 (or 16247 counting only the distinct ones).

The product of its (nonzero) digits is 151200000, while the sum is 64.

The spelling of 51536550887560 in words is "fifty-one trillion, five hundred thirty-six billion, five hundred fifty million, eight hundred eighty-seven thousand, five hundred sixty".