51625859 has 2 divisors, whose sum is σ = 51625860. Its totient is φ = 51625858.

The previous prime is 51625817. The next prime is 51625867. The reversal of 51625859 is 95852615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51625859 - 2¹² = 51621763 is a prime.

It is not a weakly prime, because it can be changed into another prime (51621859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25812929 + 25812930.

It is an arithmetic number, because the mean of its divisors is an integer number (25812930).

Almost surely, 2^51625859 is an apocalyptic number.

51625859 is a deficient number, since it is larger than the sum of its proper divisors (1).

51625859 is an equidigital number, since it uses as much as digits as its factorization.

51625859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 41.

The square root of 51625859 is about 7185.1137082165. The cubic root of 51625859 is about 372.3537771205.

The spelling of 51625859 in words is "fifty-one million, six hundred twenty-five thousand, eight hundred fifty-nine".