51559201 has 2 divisors, whose sum is σ = 51559202. Its totient is φ = 51559200.

The previous prime is 51559199. The next prime is 51559219. The reversal of 51559201 is 10295515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42915601 + 8643600 = 6551^2 + 2940^2 .

It is a cyclic number.

It is not a de Polignac number, because 51559201 - 2¹ = 51559199 is a prime.

Together with 51559199, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51559201.

It is not a weakly prime, because it can be changed into another prime (51559801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25779600 + 25779601.

It is an arithmetic number, because the mean of its divisors is an integer number (25779601).

Almost surely, 2^51559201 is an apocalyptic number.

It is an amenable number.

51559201 is a deficient number, since it is larger than the sum of its proper divisors (1).

51559201 is an equidigital number, since it uses as much as digits as its factorization.

51559201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 51559201 is about 7180.4735916233. The cubic root of 51559201 is about 372.1934501790.

The spelling of 51559201 in words is "fifty-one million, five hundred fifty-nine thousand, two hundred one".