51488236800 has 2592 divisors, whose sum is σ = 265702993920. Its totient is φ = 9157017600.

The previous prime is 51488236729. The next prime is 51488236801. The reversal of 51488236800 is 863288415.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51488236801) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1095494377 + ... + 1095494423.

Almost surely, 2^51488236800 is an apocalyptic number.

51488236800 is a gapful number since it is divisible by the number (50) 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 51488236800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132851496960).

51488236800 is an abundant number, since it is smaller than the sum of its proper divisors (214214757120).

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

51488236800 is a wasteful number, since it uses less digits than its factorization.

51488236800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

It can be divided in two parts, 5148 and 8236800, that multiplied together give a square (42403046400 = 205920²).

The spelling of 51488236800 in words is "fifty-one billion, four hundred eighty-eight million, two hundred thirty-six thousand, eight hundred".