51102021313552 has 40 divisors (see below), whose sum is σ = 108011644660512. Its totient is φ = 23228072332800.

The previous prime is 51102021313537. The next prime is 51102021313579. The reversal of 51102021313552 is 25531312020115.

It is a happy number.

51102021313552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51102021313552² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39958008 + ... + 41217064.

Almost surely, 2^{51102021313552} is an apocalyptic number.

It is an amenable number.

51102021313552 is an abundant number, since it is smaller than the sum of its proper divisors (56909623346960).

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

51102021313552 is a wasteful number, since it uses less digits than its factorization.

51102021313552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489687 (or 1489681 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 51102021313552 its reverse (25531312020115), we get a palindrome (76633333333667).

The spelling of 51102021313552 in words is "fifty-one trillion, one hundred two billion, twenty-one million, three hundred thirteen thousand, five hundred fifty-two".