51604351524241 has 4 divisors (see below), whose sum is σ = 51605472892084. Its totient is φ = 51603230156400.

The previous prime is 51604351524239. The next prime is 51604351524247. The reversal of 51604351524241 is 14242515340615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29883671827216 + 21720679697025 = 5466596^2 + 4660545^2 .

It is a cyclic number.

It is not a de Polignac number, because 51604351524241 - 2¹ = 51604351524239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51604351524247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560614890 + ... + 560706931.

It is an arithmetic number, because the mean of its divisors is an integer number (12901368223021).

Almost surely, 2^{51604351524241} is an apocalyptic number.

It is an amenable number.

51604351524241 is a deficient number, since it is larger than the sum of its proper divisors (1121367843).

51604351524241 is a wasteful number, since it uses less digits than its factorization.

51604351524241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121367842.

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 51604351524241 its reverse (14242515340615), we get a palindrome (65846866864856).

The spelling of 51604351524241 in words is "fifty-one trillion, six hundred four billion, three hundred fifty-one million, five hundred twenty-four thousand, two hundred forty-one".