51312301 has 2 divisors, whose sum is σ = 51312302. Its totient is φ = 51312300.

The previous prime is 51312271. The next prime is 51312329. The reversal of 51312301 is 10321315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30791401 + 20520900 = 5549^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 51312301 - 2¹³ = 51304109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51312101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25656150 + 25656151.

It is an arithmetic number, because the mean of its divisors is an integer number (25656151).

Almost surely, 2^51312301 is an apocalyptic number.

It is an amenable number.

51312301 is a deficient number, since it is larger than the sum of its proper divisors (1).

51312301 is an equidigital number, since it uses as much as digits as its factorization.

51312301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 51312301 is about 7163.2605006380. The cubic root of 51312301 is about 371.5983954536.

Adding to 51312301 its reverse (10321315), we get a palindrome (61633616).

The spelling of 51312301 in words is "fifty-one million, three hundred twelve thousand, three hundred one".