55621206514424 has 32 divisors (see below), whose sum is σ = 106717209160320. Its totient is φ = 27163309570656.

The previous prime is 55621206514327. The next prime is 55621206514427. The reversal of 55621206514424 is 42441560212655.

It is a super-2 number, since 2×55621206514424² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55621206514427) 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, 16169789 + ... + 19305555.

It is an arithmetic number, because the mean of its divisors is an integer number (3334912786260).

Almost surely, 2^{55621206514424} is an apocalyptic number.

It is an amenable number.

55621206514424 is a deficient number, since it is larger than the sum of its proper divisors (51096002645896).

55621206514424 is a wasteful number, since it uses less digits than its factorization.

55621206514424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187379 (or 3187375 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 55621206514424 in words is "fifty-five trillion, six hundred twenty-one billion, two hundred six million, five hundred fourteen thousand, four hundred twenty-four".