51544453013 has 8 divisors (see below), whose sum is σ = 52547740896. Its totient is φ = 50546271600.

The previous prime is 51544453007. The next prime is 51544453061. The reversal of 51544453013 is 31035444515.

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

It is a cyclic number.

It is not a de Polignac number, because 51544453013 - 2²² = 51540258709 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 (51544413013) 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, 1256231 + ... + 1296612.

It is an arithmetic number, because the mean of its divisors is an integer number (6568467612).

Almost surely, 2^51544453013 is an apocalyptic number.

It is an amenable number.

51544453013 is a deficient number, since it is larger than the sum of its proper divisors (1003287883).

51544453013 is a wasteful number, since it uses less digits than its factorization.

51544453013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553235.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 51544453013 its reverse (31035444515), we get a palindrome (82579897528).

The spelling of 51544453013 in words is "fifty-one billion, five hundred forty-four million, four hundred fifty-three thousand, thirteen".