2522218860 has 144 divisors (see below), whose sum is σ = 8757455616. Its totient is φ = 575600256.

The previous prime is 2522218843. The next prime is 2522218871. The reversal of 2522218860 is 688122252.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1111447 + ... + 1113713.

It is an arithmetic number, because the mean of its divisors is an integer number (60815664).

Almost surely, 2^2522218860 is an apocalyptic number.

2522218860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2522218860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4378727808).

2522218860 is an abundant number, since it is smaller than the sum of its proper divisors (6235236756).

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

2522218860 is a wasteful number, since it uses less digits than its factorization.

2522218860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 2522218860 is about 50221.6971039410. The cubic root of 2522218860 is about 1361.2177062312.

The spelling of 2522218860 in words is "two billion, five hundred twenty-two million, two hundred eighteen thousand, eight hundred sixty".