51601210853 has 2 divisors, whose sum is σ = 51601210854. Its totient is φ = 51601210852.

The previous prime is 51601210847. The next prime is 51601210889. The reversal of 51601210853 is 35801210615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38673975649 + 12927235204 = 196657^2 + 113698^2 .

It is a cyclic number.

It is not a de Polignac number, because 51601210853 - 2⁶ = 51601210789 is a prime.

It is a super-2 number, since 2×51601210853² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51601218853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25800605426 + 25800605427.

It is an arithmetic number, because the mean of its divisors is an integer number (25800605427).

Almost surely, 2^51601210853 is an apocalyptic number.

It is an amenable number.

51601210853 is a deficient number, since it is larger than the sum of its proper divisors (1).

51601210853 is an equidigital number, since it uses as much as digits as its factorization.

51601210853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 51601210853 in words is "fifty-one billion, six hundred one million, two hundred ten thousand, eight hundred fifty-three".