51630301 has 2 divisors, whose sum is σ = 51630302. Its totient is φ = 51630300.

The previous prime is 51630269. The next prime is 51630317. The reversal of 51630301 is 10303615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51466276 + 164025 = 7174^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 51630301 - 2⁵ = 51630269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51630361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25815150 + 25815151.

It is an arithmetic number, because the mean of its divisors is an integer number (25815151).

Almost surely, 2^51630301 is an apocalyptic number.

It is an amenable number.

51630301 is a deficient number, since it is larger than the sum of its proper divisors (1).

51630301 is an equidigital number, since it uses as much as digits as its factorization.

51630301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 51630301 is about 7185.4228128900. The cubic root of 51630301 is about 372.3644561876.

Adding to 51630301 its reverse (10303615), we get a palindrome (61933916).

The spelling of 51630301 in words is "fifty-one million, six hundred thirty thousand, three hundred one".