55693598220 has 192 divisors, whose sum is σ = 187241120640. Its totient is φ = 13661899776.

The previous prime is 55693598197. The next prime is 55693598269. The reversal of 55693598220 is 2289539655.

55693598220 is a `hidden beast` number, since 5 + 5 + 69 + 359 + 8 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 2043322 + ... + 2070398.

It is an arithmetic number, because the mean of its divisors is an integer number (975214170).

Almost surely, 2^55693598220 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 55693598220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93620560320).

55693598220 is an abundant number, since it is smaller than the sum of its proper divisors (131547522420).

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

55693598220 is a wasteful number, since it uses less digits than its factorization.

55693598220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27401 (or 27393 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 55693598220 in words is "fifty-five billion, six hundred ninety-three million, five hundred ninety-eight thousand, two hundred twenty".