2265521003 has 4 divisors (see below), whose sum is σ = 2265753960. Its totient is φ = 2265288048.

The previous prime is 2265520991. The next prime is 2265521021. The reversal of 2265521003 is 3001255622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2265521003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2265521033) 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, 101225 + ... + 121562.

It is an arithmetic number, because the mean of its divisors is an integer number (566438490).

Almost surely, 2^2265521003 is an apocalyptic number.

2265521003 is a deficient number, since it is larger than the sum of its proper divisors (232957).

2265521003 is a wasteful number, since it uses less digits than its factorization.

2265521003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232956.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2265521003 is about 47597.4894611050. The cubic root of 2265521003 is about 1313.3768719122.

Adding to 2265521003 its reverse (3001255622), we get a palindrome (5266776625).

The spelling of 2265521003 in words is "two billion, two hundred sixty-five million, five hundred twenty-one thousand, three".