51655411548 has 288 divisors, whose sum is σ = 147829334016. Its totient is φ = 15104226816.

The previous prime is 51655411543. The next prime is 51655411553. The reversal of 51655411548 is 84511455615.

51655411548 is a `hidden beast` number, since 5 + 1 + 65 + 5 + 41 + 1 + 548 = 666.

It is an interprime number because it is at equal distance from previous prime (51655411543) and next prime (51655411553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51655411543) 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 95 ways as a sum of consecutive naturals, for example, 182527815 + ... + 182528097.

Almost surely, 2^51655411548 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 51655411548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73914667008).

51655411548 is an abundant number, since it is smaller than the sum of its proper divisors (96173922468).

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

51655411548 is a wasteful number, since it uses less digits than its factorization.

51655411548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 548 counting only the distinct ones).

The product of its digits is 480000, while the sum is 45.

It can be divided in two parts, 51655 and 411548, that added together give a triangular number (463203 = T₉₆₂).

The spelling of 51655411548 in words is "fifty-one billion, six hundred fifty-five million, four hundred eleven thousand, five hundred forty-eight".