51200456201 has 4 divisors (see below), whose sum is σ = 52039808004. Its totient is φ = 50361104400.

The previous prime is 51200456191. The next prime is 51200456243. The reversal of 51200456201 is 10265400215.

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 12105280576 + 39095175625 = 110024^2 + 197725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51200456201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51200456291) 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, 419675810 + ... + 419675931.

It is an arithmetic number, because the mean of its divisors is an integer number (13009952001).

Almost surely, 2^51200456201 is an apocalyptic number.

It is an amenable number.

51200456201 is a deficient number, since it is larger than the sum of its proper divisors (839351803).

51200456201 is an equidigital number, since it uses as much as digits as its factorization.

51200456201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839351802.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51200456201 its reverse (10265400215), we get a palindrome (61465856416).

The spelling of 51200456201 in words is "fifty-one billion, two hundred million, four hundred fifty-six thousand, two hundred one".