51964379 has 2 divisors, whose sum is σ = 51964380. Its totient is φ = 51964378.

The previous prime is 51964307. The next prime is 51964417. The reversal of 51964379 is 97346915.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51964379 - 2⁸ = 51964123 is a prime.

It is not a weakly prime, because it can be changed into another prime (51964079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25982189 + 25982190.

It is an arithmetic number, because the mean of its divisors is an integer number (25982190).

Almost surely, 2^51964379 is an apocalyptic number.

51964379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51964379 is an equidigital number, since it uses as much as digits as its factorization.

51964379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 44.

The square root of 51964379 is about 7208.6322558444. The cubic root of 51964379 is about 373.1658681493.

The spelling of 51964379 in words is "fifty-one million, nine hundred sixty-four thousand, three hundred seventy-nine".