2261031253 has 4 divisors (see below), whose sum is σ = 2434956748. Its totient is φ = 2087105760.

The previous prime is 2261031247. The next prime is 2261031257. The reversal of 2261031253 is 3521301622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 223592209 + 2037439044 = 14953^2 + 45138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261031253 is a prime.

It is a super-2 number, since 2×2261031253² = 10224524654085500018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261031257) 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, 86962728 + ... + 86962753.

It is an arithmetic number, because the mean of its divisors is an integer number (608739187).

Almost surely, 2^2261031253 is an apocalyptic number.

It is an amenable number.

2261031253 is a deficient number, since it is larger than the sum of its proper divisors (173925495).

2261031253 is a wasteful number, since it uses less digits than its factorization.

2261031253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173925494.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2261031253 is about 47550.3023439389. The cubic root of 2261031253 is about 1312.5086928888.

Adding to 2261031253 its reverse (3521301622), we get a palindrome (5782332875).

The spelling of 2261031253 in words is "two billion, two hundred sixty-one million, thirty-one thousand, two hundred fifty-three".