51013540253 has 8 divisors (see below), whose sum is σ = 57326252928. Its totient is φ = 45042055344.

The previous prime is 51013540223. The next prime is 51013540283. The reversal of 51013540253 is 35204531015.

It is an interprime number because it is at equal distance from previous prime (51013540223) and next prime (51013540283).

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

It is not a de Polignac number, because 51013540253 - 2¹⁰ = 51013539229 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 (51013540223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85306625 + ... + 85307222.

It is an arithmetic number, because the mean of its divisors is an integer number (7165781616).

Almost surely, 2^51013540253 is an apocalyptic number.

It is an amenable number.

51013540253 is a deficient number, since it is larger than the sum of its proper divisors (6312712675).

51013540253 is a wasteful number, since it uses less digits than its factorization.

51013540253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170613883.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 51013540253 in words is "fifty-one billion, thirteen million, five hundred forty thousand, two hundred fifty-three".