51553025161387 has 2 divisors, whose sum is σ = 51553025161388. Its totient is φ = 51553025161386.

The previous prime is 51553025161369. The next prime is 51553025161439. The reversal of 51553025161387 is 78316152035515.

It is an a-pointer prime, because the next prime (51553025161439) can be obtained adding 51553025161387 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51553025161387 is a prime.

It is a super-2 number, since 2×51553025161387² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51553025161327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776512580693 + 25776512580694.

It is an arithmetic number, because the mean of its divisors is an integer number (25776512580694).

Almost surely, 2^{51553025161387} is an apocalyptic number.

51553025161387 is a deficient number, since it is larger than the sum of its proper divisors (1).

51553025161387 is an equidigital number, since it uses as much as digits as its factorization.

51553025161387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780000, while the sum is 52.

The spelling of 51553025161387 in words is "fifty-one trillion, five hundred fifty-three billion, twenty-five million, one hundred sixty-one thousand, three hundred eighty-seven".