51530200241 has 8 divisors (see below), whose sum is σ = 56403801384. Its totient is φ = 46786561920.

The previous prime is 51530200229. The next prime is 51530200243. The reversal of 51530200241 is 14200203515.

It can be written as a sum of positive squares in 4 ways, for example, as 3540726016 + 47989474225 = 59504^2 + 219065^2 .

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 51530200241 - 2¹⁴ = 51530183857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51530200243) 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, 32489876 + ... + 32491461.

It is an arithmetic number, because the mean of its divisors is an integer number (7050475173).

Almost surely, 2^51530200241 is an apocalyptic number.

It is an amenable number.

51530200241 is a deficient number, since it is larger than the sum of its proper divisors (4873601143).

51530200241 is a wasteful number, since it uses less digits than its factorization.

51530200241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64981411.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 51530200241 its reverse (14200203515), we get a palindrome (65730403756).

The spelling of 51530200241 in words is "fifty-one billion, five hundred thirty million, two hundred thousand, two hundred forty-one".