51332552200520 has 16 divisors (see below), whose sum is σ = 115498242451260. Its totient is φ = 20533020880192.

The previous prime is 51332552200453. The next prime is 51332552200543. The reversal of 51332552200520 is 2500225523315.

It can be written as a sum of positive squares in 2 ways, for example, as 46882148478916 + 4450403721604 = 6847054^2 + 2109598^2 .

It is a super-2 number, since 2×51332552200520² (a number of 28 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, 641656902467 + ... + 641656902546.

Almost surely, 2^{51332552200520} is an apocalyptic number.

It is an amenable number.

51332552200520 is an abundant number, since it is smaller than the sum of its proper divisors (64165690250740).

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

51332552200520 is a wasteful number, since it uses less digits than its factorization.

51332552200520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283313805024 (or 1283313805020 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 51332552200520 its reverse (2500225523315), we get a palindrome (53832777723835).

The spelling of 51332552200520 in words is "fifty-one trillion, three hundred thirty-two billion, five hundred fifty-two million, two hundred thousand, five hundred twenty".