51241601 has 2 divisors, whose sum is σ = 51241602. Its totient is φ = 51241600.

The previous prime is 51241583. The next prime is 51241607. The reversal of 51241601 is 10614215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 19149376 = 5665^2 + 4376^2 .

It is a cyclic number.

It is not a de Polignac number, because 51241601 - 2¹⁸ = 50979457 is a prime.

It is not a weakly prime, because it can be changed into another prime (51241607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25620800 + 25620801.

It is an arithmetic number, because the mean of its divisors is an integer number (25620801).

Almost surely, 2^51241601 is an apocalyptic number.

It is an amenable number.

51241601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51241601 is an equidigital number, since it uses as much as digits as its factorization.

51241601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 51241601 is about 7158.3238959969. The cubic root of 51241601 is about 371.4276496385.

Adding to 51241601 its reverse (10614215), we get a palindrome (61855816).

The spelling of 51241601 in words is "fifty-one million, two hundred forty-one thousand, six hundred one".