51652825616 has 80 divisors (see below), whose sum is σ = 115822586880. Its totient is φ = 21857946240.

The previous prime is 51652825579. The next prime is 51652825669. The reversal of 51652825616 is 61652825615.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3720095 + ... + 3733953.

It is an arithmetic number, because the mean of its divisors is an integer number (1447782336).

Almost surely, 2^51652825616 is an apocalyptic number.

51652825616 is a gapful number since it is divisible by the number (56) 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 51652825616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57911293440).

51652825616 is an abundant number, since it is smaller than the sum of its proper divisors (64169761264).

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

51652825616 is a wasteful number, since it uses less digits than its factorization.

51652825616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14292 (or 14286 counting only the distinct ones).

The product of its digits is 864000, while the sum is 47.

Subtracting 51652825616 from its reverse (61652825615), we obtain a palindrome (9999999999).

The spelling of 51652825616 in words is "fifty-one billion, six hundred fifty-two million, eight hundred twenty-five thousand, six hundred sixteen".