51802801 has 2 divisors, whose sum is σ = 51802802. Its totient is φ = 51802800.

The previous prime is 51802781. The next prime is 51802811. The reversal of 51802801 is 10820815.

51802801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31911201 + 19891600 = 5649^2 + 4460^2 .

It is a cyclic number.

It is not a de Polignac number, because 51802801 - 2⁵ = 51802769 is a prime.

It is not a weakly prime, because it can be changed into another prime (51802811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25901400 + 25901401.

It is an arithmetic number, because the mean of its divisors is an integer number (25901401).

Almost surely, 2^51802801 is an apocalyptic number.

It is an amenable number.

51802801 is a deficient number, since it is larger than the sum of its proper divisors (1).

51802801 is an equidigital number, since it uses as much as digits as its factorization.

51802801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 51802801 is about 7197.4162725245. The cubic root of 51802801 is about 372.7786926897.

The spelling of 51802801 in words is "fifty-one million, eight hundred two thousand, eight hundred one".