2205513551 has 4 divisors (see below), whose sum is σ = 2208367512. Its totient is φ = 2202659592.

The previous prime is 2205513523. The next prime is 2205513553. The reversal of 2205513551 is 1553155022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2205513551 - 2⁶ = 2205513487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205513553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1425821 + ... + 1427366.

It is an arithmetic number, because the mean of its divisors is an integer number (552091878).

Almost surely, 2^2205513551 is an apocalyptic number.

2205513551 is a deficient number, since it is larger than the sum of its proper divisors (2853961).

2205513551 is an equidigital number, since it uses as much as digits as its factorization.

2205513551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853960.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2205513551 is about 46962.8954707863. The cubic root of 2205513551 is about 1301.6770370249.

Adding to 2205513551 its reverse (1553155022), we get a palindrome (3758668573).

The spelling of 2205513551 in words is "two billion, two hundred five million, five hundred thirteen thousand, five hundred fifty-one".