51679049 has 2 divisors, whose sum is σ = 51679050. Its totient is φ = 51679048.

The previous prime is 51679027. The next prime is 51679063. The reversal of 51679049 is 94097615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 413449 = 7160^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 51679049 - 2²⁰ = 50630473 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51678997 and 51679015.

It is not a weakly prime, because it can be changed into another prime (51679549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25839524 + 25839525.

It is an arithmetic number, because the mean of its divisors is an integer number (25839525).

Almost surely, 2^51679049 is an apocalyptic number.

It is an amenable number.

51679049 is a deficient number, since it is larger than the sum of its proper divisors (1).

51679049 is an equidigital number, since it uses as much as digits as its factorization.

51679049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 51679049 is about 7188.8141581209. The cubic root of 51679049 is about 372.4816116323.

The spelling of 51679049 in words is "fifty-one million, six hundred seventy-nine thousand, forty-nine".