51130036445652 has 18 divisors (see below), whose sum is σ = 129245369904378. Its totient is φ = 17043345481872.

The previous prime is 51130036445651. The next prime is 51130036445777. The reversal of 51130036445652 is 25654463003115.

It is a happy number.

51130036445652 is a `hidden beast` number, since 5 + 1 + 13 + 0 + 0 + 36 + 44 + 565 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28810421241156 + 22319615204496 = 5367534^2 + 4724364^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×51130036445652² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51130036445598 and 51130036445607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51130036445651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710139395043 + ... + 710139395114.

It is an arithmetic number, because the mean of its divisors is an integer number (7180298328021).

Almost surely, 2^{51130036445652} is an apocalyptic number.

It is an amenable number.

51130036445652 is an abundant number, since it is smaller than the sum of its proper divisors (78115333458726).

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

51130036445652 is a wasteful number, since it uses less digits than its factorization.

51130036445652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420278790167 (or 1420278790162 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

Adding to 51130036445652 its reverse (25654463003115), we get a palindrome (76784499448767).

The spelling of 51130036445652 in words is "fifty-one trillion, one hundred thirty billion, thirty-six million, four hundred forty-five thousand, six hundred fifty-two".