51670007 has 2 divisors, whose sum is σ = 51670008. Its totient is φ = 51670006.

The previous prime is 51669997. The next prime is 51670013. The reversal of 51670007 is 70007615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51670007 - 2⁴ = 51669991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51670027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25835003 + 25835004.

It is an arithmetic number, because the mean of its divisors is an integer number (25835004).

Almost surely, 2^51670007 is an apocalyptic number.

51670007 is a deficient number, since it is larger than the sum of its proper divisors (1).

51670007 is an equidigital number, since it uses as much as digits as its factorization.

51670007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51670007 is about 7188.1852369009. The cubic root of 51670007 is about 372.4598866764.

The spelling of 51670007 in words is "fifty-one million, six hundred seventy thousand, seven".