51330502253 has 8 divisors (see below), whose sum is σ = 54433186488. Its totient is φ = 48237067264.

The previous prime is 51330502199. The next prime is 51330502319. The reversal of 51330502253 is 35220503315.

It can be written as a sum of positive squares in 4 ways, for example, as 6959044 + 51323543209 = 2638^2 + 226547^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51330502253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51330502753) 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, 2300876 + ... + 2323077.

It is an arithmetic number, because the mean of its divisors is an integer number (6804148311).

Almost surely, 2^51330502253 is an apocalyptic number.

It is an amenable number.

51330502253 is a deficient number, since it is larger than the sum of its proper divisors (3102684235).

51330502253 is a wasteful number, since it uses less digits than its factorization.

51330502253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624623.

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

The spelling of 51330502253 in words is "fifty-one billion, three hundred thirty million, five hundred two thousand, two hundred fifty-three".