2265231251 has 4 divisors (see below), whose sum is σ = 2265873432. Its totient is φ = 2264589072.

The previous prime is 2265231247. The next prime is 2265231301. The reversal of 2265231251 is 1521325622.

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 2265231251 - 2² = 2265231247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2265231211) 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, 315770 + ... + 322863.

It is an arithmetic number, because the mean of its divisors is an integer number (566468358).

Almost surely, 2^2265231251 is an apocalyptic number.

2265231251 is a deficient number, since it is larger than the sum of its proper divisors (642181).

2265231251 is an equidigital number, since it uses as much as digits as its factorization.

2265231251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642180.

The product of its digits is 7200, while the sum is 29.

The square root of 2265231251 is about 47594.4455897955. The cubic root of 2265231251 is about 1313.3208774632.

Adding to 2265231251 its reverse (1521325622), we get a palindrome (3786556873).

The spelling of 2265231251 in words is "two billion, two hundred sixty-five million, two hundred thirty-one thousand, two hundred fifty-one".