51628601 has 2 divisors, whose sum is σ = 51628602. Its totient is φ = 51628600.

The previous prime is 51628597. The next prime is 51628627. The reversal of 51628601 is 10682615.

It is a happy number.

51628601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30514576 + 21114025 = 5524^2 + 4595^2 .

It is a cyclic number.

It is not a de Polignac number, because 51628601 - 2² = 51628597 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51628691) 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, 25814300 + 25814301.

It is an arithmetic number, because the mean of its divisors is an integer number (25814301).

Almost surely, 2^51628601 is an apocalyptic number.

It is an amenable number.

51628601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51628601 is an equidigital number, since it uses as much as digits as its factorization.

51628601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 51628601 is about 7185.3045168594. The cubic root of 51628601 is about 372.3603692689.

The spelling of 51628601 in words is "fifty-one million, six hundred twenty-eight thousand, six hundred one".