51726601 has 2 divisors, whose sum is σ = 51726602. Its totient is φ = 51726600.

The previous prime is 51726599. The next prime is 51726617. The reversal of 51726601 is 10662715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 389376 = 7165^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 51726601 - 2¹ = 51726599 is a prime.

Together with 51726599, it forms a pair of twin primes.

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 51726601.

It is not a weakly prime, because it can be changed into another prime (51726671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25863300 + 25863301.

It is an arithmetic number, because the mean of its divisors is an integer number (25863301).

Almost surely, 2^51726601 is an apocalyptic number.

It is an amenable number.

51726601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51726601 is an equidigital number, since it uses as much as digits as its factorization.

51726601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51726601 is about 7192.1207581631. The cubic root of 51726601 is about 372.5958217821.

The spelling of 51726601 in words is "fifty-one million, seven hundred twenty-six thousand, six hundred one".