51028361 has 2 divisors, whose sum is σ = 51028362. Its totient is φ = 51028360.

The previous prime is 51028309. The next prime is 51028403. The reversal of 51028361 is 16382015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 6405961 = 6680^2 + 2531^2 .

It is a cyclic number.

It is not a de Polignac number, because 51028361 - 2¹⁴ = 51011977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51028361.

It is not a weakly prime, because it can be changed into another prime (51028301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25514180 + 25514181.

It is an arithmetic number, because the mean of its divisors is an integer number (25514181).

Almost surely, 2^51028361 is an apocalyptic number.

It is an amenable number.

51028361 is a deficient number, since it is larger than the sum of its proper divisors (1).

51028361 is an equidigital number, since it uses as much as digits as its factorization.

51028361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 51028361 is about 7143.4138197363. The cubic root of 51028361 is about 370.9117058723.

The spelling of 51028361 in words is "fifty-one million, twenty-eight thousand, three hundred sixty-one".