55628615622431 has 8 divisors (see below), whose sum is σ = 55634100650400. Its totient is φ = 55623130871040.

The previous prime is 55628615622409. The next prime is 55628615622439. The reversal of 55628615622431 is 13422651682655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55628615622431 - 2³⁸ = 55353737715487 is a prime.

It is a super-2 number, since 2×55628615622431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55628615622439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740088491 + ... + 740163651.

It is an arithmetic number, because the mean of its divisors is an integer number (6954262581300).

Almost surely, 2^{55628615622431} is an apocalyptic number.

55628615622431 is a deficient number, since it is larger than the sum of its proper divisors (5485027969).

55628615622431 is a wasteful number, since it uses less digits than its factorization.

55628615622431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138289.

The product of its digits is 20736000, while the sum is 56.

The spelling of 55628615622431 in words is "fifty-five trillion, six hundred twenty-eight billion, six hundred fifteen million, six hundred twenty-two thousand, four hundred thirty-one".