55421443521206 has 32 divisors (see below), whose sum is σ = 96567488713728. Its totient is φ = 23362236692640.

The previous prime is 55421443521203. The next prime is 55421443521239. The reversal of 55421443521206 is 60212534412455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55421443521203) 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, 47817551 + ... + 48962853.

It is an arithmetic number, because the mean of its divisors is an integer number (3017734022304).

Almost surely, 2^{55421443521206} is an apocalyptic number.

55421443521206 is a deficient number, since it is larger than the sum of its proper divisors (41146045192522).

55421443521206 is a wasteful number, since it uses less digits than its factorization.

55421443521206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202036.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 55421443521206 in words is "fifty-five trillion, four hundred twenty-one billion, four hundred forty-three million, five hundred twenty-one thousand, two hundred six".