55147222080 has 336 divisors, whose sum is σ = 201781891584. Its totient is φ = 13776076800.

The previous prime is 55147222079. The next prime is 55147222099. The reversal of 55147222080 is 8022274155.

It is a happy number.

55147222080 is a `hidden beast` number, since 551 + 4 + 7 + 2 + 2 + 20 + 80 = 666.

It is a super-2 number, since 2×55147222080² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10915555 + ... + 10920605.

It is an arithmetic number, because the mean of its divisors is an integer number (600541344).

Almost surely, 2^55147222080 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 55147222080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100890945792).

55147222080 is an abundant number, since it is smaller than the sum of its proper divisors (146634669504).

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

55147222080 is a wasteful number, since it uses less digits than its factorization.

55147222080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314 (or 5301 counting only the distinct ones).

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

The spelling of 55147222080 in words is "fifty-five billion, one hundred forty-seven million, two hundred twenty-two thousand, eighty".