55220278410 has 384 divisors, whose sum is σ = 167563468800. Its totient is φ = 12485975040.

The previous prime is 55220278381. The next prime is 55220278411. The reversal of 55220278410 is 1487202255.

It is a happy number.

55220278410 is a `hidden beast` number, since 552 + 2 + 0 + 27 + 84 + 1 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (55220278411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 231047071 + ... + 231047309.

It is an arithmetic number, because the mean of its divisors is an integer number (436363200).

Almost surely, 2^55220278410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55220278410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83781734400).

55220278410 is an abundant number, since it is smaller than the sum of its proper divisors (112343190390).

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

55220278410 is a wasteful number, since it uses less digits than its factorization.

55220278410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 55220278410 in words is "fifty-five billion, two hundred twenty million, two hundred seventy-eight thousand, four hundred ten".