2217265500 has 96 divisors (see below), whose sum is σ = 6545448000. Its totient is φ = 583142400.

The previous prime is 2217265471. The next prime is 2217265541. The reversal of 2217265500 is 55627122.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 99376 + ... + 119624.

It is an arithmetic number, because the mean of its divisors is an integer number (68181750).

Almost surely, 2^2217265500 is an apocalyptic number.

2217265500 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 2217265500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3272724000).

2217265500 is an abundant number, since it is smaller than the sum of its proper divisors (4328182500).

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

2217265500 is a wasteful number, since it uses less digits than its factorization.

2217265500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20344 (or 20332 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2217265500 is about 47087.8487510313. The cubic root of 2217265500 is about 1303.9849125370.

The spelling of 2217265500 in words is "two billion, two hundred seventeen million, two hundred sixty-five thousand, five hundred".