2204040551 has 4 divisors (see below), whose sum is σ = 2255297352. Its totient is φ = 2152783752.

The previous prime is 2204040533. The next prime is 2204040577. The reversal of 2204040551 is 1550404022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1550404022 = 2 ⋅775202011.

It is a cyclic number.

It is not a de Polignac number, because 2204040551 - 2³⁰ = 1130298727 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 (2204040581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25628336 + ... + 25628421.

It is an arithmetic number, because the mean of its divisors is an integer number (563824338).

Almost surely, 2^2204040551 is an apocalyptic number.

2204040551 is a deficient number, since it is larger than the sum of its proper divisors (51256801).

2204040551 is an equidigital number, since it uses as much as digits as its factorization.

2204040551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51256800.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2204040551 is about 46947.2102579056. The cubic root of 2204040551 is about 1301.3871880861.

Adding to 2204040551 its reverse (1550404022), we get a palindrome (3754444573).

The spelling of 2204040551 in words is "two billion, two hundred four million, forty thousand, five hundred fifty-one".