51435502120 has 32 divisors (see below), whose sum is σ = 116210108520. Its totient is φ = 20488826880.

The previous prime is 51435502067. The next prime is 51435502123. The reversal of 51435502120 is 2120553415.

It can be written as a sum of positive squares in 4 ways, for example, as 51228890244 + 206611876 = 226338^2 + 14374^2 .

It is a super-2 number, since 2×51435502120² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51435502123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2658177 + ... + 2677456.

Almost surely, 2^51435502120 is an apocalyptic number.

It is an amenable number.

51435502120 is an abundant number, since it is smaller than the sum of its proper divisors (64774606400).

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

51435502120 is a wasteful number, since it uses less digits than its factorization.

51435502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335885 (or 5335881 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 51435502120 in words is "fifty-one billion, four hundred thirty-five million, five hundred two thousand, one hundred twenty".