51085607 has 2 divisors, whose sum is σ = 51085608. Its totient is φ = 51085606.

The previous prime is 51085583. The next prime is 51085627. The reversal of 51085607 is 70658015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51085607 - 2⁶ = 51085543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51085627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25542803 + 25542804.

It is an arithmetic number, because the mean of its divisors is an integer number (25542804).

Almost surely, 2^51085607 is an apocalyptic number.

51085607 is a deficient number, since it is larger than the sum of its proper divisors (1).

51085607 is an equidigital number, since it uses as much as digits as its factorization.

51085607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 51085607 is about 7147.4196043048. The cubic root of 51085607 is about 371.0503560654.

The spelling of 51085607 in words is "fifty-one million, eighty-five thousand, six hundred seven".