55131110241420 has 192 divisors, whose sum is σ = 156680152320384. Its totient is φ = 14483057541120.

The previous prime is 55131110241373. The next prime is 55131110241433. The reversal of 55131110241420 is 2414201113155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1508728350 + ... + 1508764890.

It is an arithmetic number, because the mean of its divisors is an integer number (816042460002).

Almost surely, 2^{55131110241420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55131110241420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78340076160192).

55131110241420 is an abundant number, since it is smaller than the sum of its proper divisors (101549042078964).

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

55131110241420 is a wasteful number, since it uses less digits than its factorization.

55131110241420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38012 (or 38010 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 55131110241420 its reverse (2414201113155), we get a palindrome (57545311354575).

The spelling of 55131110241420 in words is "fifty-five trillion, one hundred thirty-one billion, one hundred ten million, two hundred forty-one thousand, four hundred twenty".