55127733540 has 192 divisors, whose sum is σ = 184960419840. Its totient is φ = 12110376960.

The previous prime is 55127733511. The next prime is 55127733571. The reversal of 55127733540 is 4533772155.

It is a junction number, because it is equal to n+sod(n) for n = 55127733492 and 55127733501.

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, 192852 + ... + 383988.

It is an arithmetic number, because the mean of its divisors is an integer number (963335520).

Almost surely, 2^55127733540 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 55127733540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92480209920).

55127733540 is an abundant number, since it is smaller than the sum of its proper divisors (129832686300).

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

55127733540 is a wasteful number, since it uses less digits than its factorization.

55127733540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191202 (or 191200 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 42.

The spelling of 55127733540 in words is "fifty-five billion, one hundred twenty-seven million, seven hundred thirty-three thousand, five hundred forty".