51552051020 has 12 divisors (see below), whose sum is σ = 108259307184. Its totient is φ = 20620820400.

The previous prime is 51552051011. The next prime is 51552051037. The reversal of 51552051020 is 2015025515.

51552051020 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 2×51552051020² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288801256 + ... + 1288801295.

It is an arithmetic number, because the mean of its divisors is an integer number (9021608932).

Almost surely, 2^51552051020 is an apocalyptic number.

It is an amenable number.

51552051020 is an abundant number, since it is smaller than the sum of its proper divisors (56707256164).

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

51552051020 is a wasteful number, since it uses less digits than its factorization.

51552051020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577602560 (or 2577602558 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

Adding to 51552051020 its reverse (2015025515), we get a palindrome (53567076535).

The spelling of 51552051020 in words is "fifty-one billion, five hundred fifty-two million, fifty-one thousand, twenty".