51495307 has 2 divisors, whose sum is σ = 51495308. Its totient is φ = 51495306.

The previous prime is 51495293. The next prime is 51495313. The reversal of 51495307 is 70359415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51495307 - 2¹¹ = 51493259 is a prime.

It is not a weakly prime, because it can be changed into another prime (51495337) 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, 25747653 + 25747654.

It is an arithmetic number, because the mean of its divisors is an integer number (25747654).

Almost surely, 2^51495307 is an apocalyptic number.

51495307 is a deficient number, since it is larger than the sum of its proper divisors (1).

51495307 is an equidigital number, since it uses as much as digits as its factorization.

51495307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 51495307 is about 7176.0230629507. The cubic root of 51495307 is about 372.0396414956.

The spelling of 51495307 in words is "fifty-one million, four hundred ninety-five thousand, three hundred seven".