51446501 has 2 divisors, whose sum is σ = 51446502. Its totient is φ = 51446500.

The previous prime is 51446491. The next prime is 51446537. The reversal of 51446501 is 10564415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 5410276 = 6785^2 + 2326^2 .

It is a cyclic number.

It is not a de Polignac number, because 51446501 - 2¹⁰ = 51445477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51446581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25723250 + 25723251.

It is an arithmetic number, because the mean of its divisors is an integer number (25723251).

Almost surely, 2^51446501 is an apocalyptic number.

It is an amenable number.

51446501 is a deficient number, since it is larger than the sum of its proper divisors (1).

51446501 is an equidigital number, since it uses as much as digits as its factorization.

51446501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51446501 is about 7172.6216267136. The cubic root of 51446501 is about 371.9220676343.

The spelling of 51446501 in words is "fifty-one million, four hundred forty-six thousand, five hundred one".