51667379 has 2 divisors, whose sum is σ = 51667380. Its totient is φ = 51667378.

The previous prime is 51667367. The next prime is 51667391. The reversal of 51667379 is 97376615.

It is a balanced prime because it is at equal distance from previous prime (51667367) and next prime (51667391).

It is a cyclic number.

It is not a de Polignac number, because 51667379 - 2¹⁶ = 51601843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51667079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25833689 + 25833690.

It is an arithmetic number, because the mean of its divisors is an integer number (25833690).

Almost surely, 2^51667379 is an apocalyptic number.

51667379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51667379 is an equidigital number, since it uses as much as digits as its factorization.

51667379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 51667379 is about 7188.0024346128. The cubic root of 51667379 is about 372.4535719803.

The spelling of 51667379 in words is "fifty-one million, six hundred sixty-seven thousand, three hundred seventy-nine".