51346979 has 2 divisors, whose sum is σ = 51346980. Its totient is φ = 51346978.

The previous prime is 51346973. The next prime is 51346993. The reversal of 51346979 is 97964315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51346979 - 2⁴ = 51346963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51346973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25673489 + 25673490.

It is an arithmetic number, because the mean of its divisors is an integer number (25673490).

Almost surely, 2^51346979 is an apocalyptic number.

51346979 is a deficient number, since it is larger than the sum of its proper divisors (1).

51346979 is an equidigital number, since it uses as much as digits as its factorization.

51346979 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 51346979 is about 7165.6806375947. The cubic root of 51346979 is about 371.6820881033.

It can be divided in two parts, 51346 and 979, that added together give a palindrome (52325).

The spelling of 51346979 in words is "fifty-one million, three hundred forty-six thousand, nine hundred seventy-nine".