51662707 has 2 divisors, whose sum is σ = 51662708. Its totient is φ = 51662706.

The previous prime is 51662683. The next prime is 51662713. The reversal of 51662707 is 70726615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51662707 - 2⁷ = 51662579 is a prime.

It is not a weakly prime, because it can be changed into another prime (51662797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25831353 + 25831354.

It is an arithmetic number, because the mean of its divisors is an integer number (25831354).

Almost surely, 2^51662707 is an apocalyptic number.

51662707 is a deficient number, since it is larger than the sum of its proper divisors (1).

51662707 is an equidigital number, since it uses as much as digits as its factorization.

51662707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 51662707 is about 7187.6774412880. The cubic root of 51662707 is about 372.4423453251.

The spelling of 51662707 in words is "fifty-one million, six hundred sixty-two thousand, seven hundred seven".