51045522544013 has 16 divisors (see below), whose sum is σ = 51820994526336. Its totient is φ = 50274105312960.

The previous prime is 51045522543997. The next prime is 51045522544021. The reversal of 51045522544013 is 31044522554015.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51045522544013 - 2⁴ = 51045522543997 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 (51045522544063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35074520 + ... + 36500862.

It is an arithmetic number, because the mean of its divisors is an integer number (3238812157896).

Almost surely, 2^{51045522544013} is an apocalyptic number.

It is an amenable number.

51045522544013 is a deficient number, since it is larger than the sum of its proper divisors (775471982323).

51045522544013 is a wasteful number, since it uses less digits than its factorization.

51045522544013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427764.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 51045522544013 in words is "fifty-one trillion, forty-five billion, five hundred twenty-two million, five hundred forty-four thousand, thirteen".