55222210560 has 416 divisors, whose sum is σ = 194901240960. Its totient is φ = 13238272000.

The previous prime is 55222210441. The next prime is 55222210619. The reversal of 55222210560 is 6501222255.

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 31 ways as a sum of consecutive naturals, for example, 68259436 + ... + 68260244.

Almost surely, 2^55222210560 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 55222210560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97450620480).

55222210560 is an abundant number, since it is smaller than the sum of its proper divisors (139679030400).

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

55222210560 is a wasteful number, since it uses less digits than its factorization.

55222210560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 55222210560 in words is "fifty-five billion, two hundred twenty-two million, two hundred ten thousand, five hundred sixty".