51635662548 has 12 divisors (see below), whose sum is σ = 120483212640. Its totient is φ = 17211887512.

The previous prime is 51635662543. The next prime is 51635662567. The reversal of 51635662548 is 84526653615.

51635662548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 51635662548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51635662541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151485928 + ... + 2151485951.

It is an arithmetic number, because the mean of its divisors is an integer number (10040267720).

Almost surely, 2^51635662548 is an apocalyptic number.

It is an amenable number.

51635662548 is an abundant number, since it is smaller than the sum of its proper divisors (68847550092).

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

51635662548 is a wasteful number, since it uses less digits than its factorization.

51635662548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302971886 (or 4302971884 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 51.

The spelling of 51635662548 in words is "fifty-one billion, six hundred thirty-five million, six hundred sixty-two thousand, five hundred forty-eight".