55522323340 has 96 divisors (see below), whose sum is σ = 134762310144. Its totient is φ = 18990504960.

The previous prime is 55522323277. The next prime is 55522323343. The reversal of 55522323340 is 4332322555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 55522323296 and 55522323305.

It is not an unprimeable number, because it can be changed into a prime (55522323343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7786857 + ... + 7793983.

It is an arithmetic number, because the mean of its divisors is an integer number (1403774064).

Almost surely, 2^55522323340 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 55522323340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67381155072).

55522323340 is an abundant number, since it is smaller than the sum of its proper divisors (79239986804).

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

55522323340 is a wasteful number, since it uses less digits than its factorization.

55522323340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247 (or 9245 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 55522323340 its reverse (4332322555), we get a palindrome (59854645895).

The spelling of 55522323340 in words is "fifty-five billion, five hundred twenty-two million, three hundred twenty-three thousand, three hundred forty".