51894379 has 2 divisors, whose sum is σ = 51894380. Its totient is φ = 51894378.

The previous prime is 51894373. The next prime is 51894383. The reversal of 51894379 is 97349815.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51894379 - 2¹¹ = 51892331 is a prime.

It is not a weakly prime, because it can be changed into another prime (51894373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25947189 + 25947190.

It is an arithmetic number, because the mean of its divisors is an integer number (25947190).

Almost surely, 2^51894379 is an apocalyptic number.

51894379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51894379 is an equidigital number, since it uses as much as digits as its factorization.

51894379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 51894379 is about 7203.7753296449. The cubic root of 51894379 is about 372.9982318484.

The spelling of 51894379 in words is "fifty-one million, eight hundred ninety-four thousand, three hundred seventy-nine".