55405213404234 has 16 divisors (see below), whose sum is σ = 114631476009120. Its totient is φ = 17831562934640.

The previous prime is 55405213404227. The next prime is 55405213404257. The reversal of 55405213404234 is 43240431250455.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159210383172 + ... + 159210383519.

It is an arithmetic number, because the mean of its divisors is an integer number (7164467250570).

Almost surely, 2^{55405213404234} is an apocalyptic number.

55405213404234 is an abundant number, since it is smaller than the sum of its proper divisors (59226262604886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55405213404234 is a wasteful number, since it uses less digits than its factorization.

55405213404234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318420766725.

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 55405213404234 its reverse (43240431250455), we get a palindrome (98645644654689).

The spelling of 55405213404234 in words is "fifty-five trillion, four hundred five billion, two hundred thirteen million, four hundred four thousand, two hundred thirty-four".