51602447232 has 576 divisors, whose sum is σ = 183355885440. Its totient is φ = 13864919040.

The previous prime is 51602447179. The next prime is 51602447233. The reversal of 51602447232 is 23274420615.

51602447232 is a `hidden beast` number, since 5 + 1 + 602 + 4 + 47 + 2 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51602447233) 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 71 ways as a sum of consecutive naturals, for example, 64745458 + ... + 64746254.

It is an arithmetic number, because the mean of its divisors is an integer number (318326190).

Almost surely, 2^51602447232 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 51602447232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91677942720).

51602447232 is an abundant number, since it is smaller than the sum of its proper divisors (131753438208).

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

51602447232 is a wasteful number, since it uses less digits than its factorization.

51602447232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 51602447232 its reverse (23274420615), we get a palindrome (74876867847).

The spelling of 51602447232 in words is "fifty-one billion, six hundred two million, four hundred forty-seven thousand, two hundred thirty-two".