51553025161431 has 16 divisors (see below), whose sum is σ = 70601041431264. Its totient is φ = 33437001636864.

The previous prime is 51553025161387. The next prime is 51553025161439. The reversal of 51553025161431 is 13416152035515.

It is not a de Polignac number, because 51553025161431 - 2¹⁸ = 51553024899287 is a prime.

It is a super-3 number, since 3×51553025161431³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51553025161439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18101046 + ... + 20754611.

It is an arithmetic number, because the mean of its divisors is an integer number (4412565089454).

Almost surely, 2^{51553025161431} is an apocalyptic number.

51553025161431 is a deficient number, since it is larger than the sum of its proper divisors (19048016269833).

51553025161431 is a wasteful number, since it uses less digits than its factorization.

51553025161431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38867650.

The product of its (nonzero) digits is 270000, while the sum is 42.

Adding to 51553025161431 its reverse (13416152035515), we get a palindrome (64969177196946).

The spelling of 51553025161431 in words is "fifty-one trillion, five hundred fifty-three billion, twenty-five million, one hundred sixty-one thousand, four hundred thirty-one".