56002122 has 48 divisors (see below), whose sum is σ = 133593408. Its totient is φ = 16813440.

The previous prime is 56002109. The next prime is 56002123. The reversal of 56002122 is 22120065.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 56002095 and 56002104.

It is not an unprimeable number, because it can be changed into a prime (56002123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21123 + ... + 23625.

It is an arithmetic number, because the mean of its divisors is an integer number (2783196).

Almost surely, 2^56002122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56002122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66796704).

56002122 is an abundant number, since it is smaller than the sum of its proper divisors (77591286).

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

56002122 is a wasteful number, since it uses less digits than its factorization.

56002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2632 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 56002122 is about 7483.4565542936. The cubic root of 56002122 is about 382.5910689220.

Adding to 56002122 its reverse (22120065), we get a palindrome (78122187).

The spelling of 56002122 in words is "fifty-six million, two thousand, one hundred twenty-two".