51540521443053 has 8 divisors (see below), whose sum is σ = 68721305253216. Its totient is φ = 34360042630800.

The previous prime is 51540521443031. The next prime is 51540521443057. The reversal of 51540521443053 is 35034412504515.

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

It is not a de Polignac number, because 51540521443053 - 2⁶ = 51540521442989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51540521442996 and 51540521443014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51540521443057) 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, 75854883 + ... + 76531328.

It is an arithmetic number, because the mean of its divisors is an integer number (8590163156652).

Almost surely, 2^{51540521443053} is an apocalyptic number.

It is an amenable number.

51540521443053 is a deficient number, since it is larger than the sum of its proper divisors (17180783810163).

51540521443053 is a wasteful number, since it uses less digits than its factorization.

51540521443053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152498955.

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 51540521443053 its reverse (35034412504515), we get a palindrome (86574933947568).

The spelling of 51540521443053 in words is "fifty-one trillion, five hundred forty billion, five hundred twenty-one million, four hundred forty-three thousand, fifty-three".