55431421436125 has 32 divisors (see below), whose sum is σ = 79148213284608. Its totient is φ = 37968209496000.

The previous prime is 55431421436119. The next prime is 55431421436201. The reversal of 55431421436125 is 52163412413455.

It is a happy number.

It is not a de Polignac number, because 55431421436125 - 2⁵ = 55431421436093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34129306 + ... + 35716555.

It is an arithmetic number, because the mean of its divisors is an integer number (2473381665144).

Almost surely, 2^{55431421436125} is an apocalyptic number.

It is an amenable number.

55431421436125 is a deficient number, since it is larger than the sum of its proper divisors (23716791848483).

55431421436125 is an equidigital number, since it uses as much as digits as its factorization.

55431421436125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69846790 (or 69846780 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The spelling of 55431421436125 in words is "fifty-five trillion, four hundred thirty-one billion, four hundred twenty-one million, four hundred thirty-six thousand, one hundred twenty-five".