51330325502 has 8 divisors (see below), whose sum is σ = 77125330656. Its totient is φ = 25621881952.

The previous prime is 51330325469. The next prime is 51330325507. The reversal of 51330325502 is 20552303315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51330325502² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51330325507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21638918 + ... + 21641289.

It is an arithmetic number, because the mean of its divisors is an integer number (9640666332).

Almost surely, 2^51330325502 is an apocalyptic number.

51330325502 is a deficient number, since it is larger than the sum of its proper divisors (25795005154).

51330325502 is a wasteful number, since it uses less digits than its factorization.

51330325502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43280802.

The product of its (nonzero) digits is 13500, while the sum is 29.

Adding to 51330325502 its reverse (20552303315), we get a palindrome (71882628817).

The spelling of 51330325502 in words is "fifty-one billion, three hundred thirty million, three hundred twenty-five thousand, five hundred two".