51606106552 has 192 divisors, whose sum is σ = 132590636640. Its totient is φ = 18510105600.

The previous prime is 51606106543. The next prime is 51606106579. The reversal of 51606106552 is 25560160615.

51606106552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 25840818 + ... + 25842814.

Almost surely, 2^51606106552 is an apocalyptic number.

51606106552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51606106552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66295318320).

51606106552 is an abundant number, since it is smaller than the sum of its proper divisors (80984530088).

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

51606106552 is a wasteful number, since it uses less digits than its factorization.

51606106552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 51606106552 in words is "fifty-one billion, six hundred six million, one hundred six thousand, five hundred fifty-two".