2265403155 has 24 divisors (see below), whose sum is σ = 3825465552. Its totient is φ = 1144622016.

The previous prime is 2265403081. The next prime is 2265403157. The reversal of 2265403155 is 5513045622.

It is not a de Polignac number, because 2265403155 - 2¹⁰ = 2265402131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2265403157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203764 + ... + 214593.

It is an arithmetic number, because the mean of its divisors is an integer number (159394398).

Almost surely, 2^2265403155 is an apocalyptic number.

2265403155 is a deficient number, since it is larger than the sum of its proper divisors (1560062397).

2265403155 is a wasteful number, since it uses less digits than its factorization.

2265403155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418403 (or 418384 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 2265403155 is about 47596.2514805525. The cubic root of 2265403155 is about 1313.3540984131.

Adding to 2265403155 its reverse (5513045622), we get a palindrome (7778448777).

The spelling of 2265403155 in words is "two billion, two hundred sixty-five million, four hundred three thousand, one hundred fifty-five".