2205701556 has 24 divisors (see below), whose sum is σ = 5148609984. Its totient is φ = 734952000.

The previous prime is 2205701513. The next prime is 2205701591. The reversal of 2205701556 is 6551075022.

It is a super-2 number, since 2×2205701556² = 9730238708281642272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 66431.

It is an arithmetic number, because the mean of its divisors is an integer number (214525416).

Almost surely, 2^2205701556 is an apocalyptic number.

It is an amenable number.

2205701556 is an abundant number, since it is smaller than the sum of its proper divisors (2942908428).

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

2205701556 is a wasteful number, since it uses less digits than its factorization.

2205701556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70471 (or 70469 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 2205701556 is about 46964.8970615288. The cubic root of 2205701556 is about 1301.7140223395.

Adding to 2205701556 its reverse (6551075022), we get a palindrome (8756776578).

The spelling of 2205701556 in words is "two billion, two hundred five million, seven hundred one thousand, five hundred fifty-six".