3261275251 has 4 divisors (see below), whose sum is σ = 3512142592. Its totient is φ = 3010407912.

The previous prime is 3261275231. The next prime is 3261275287. The reversal of 3261275251 is 1525721623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1525721623 = 223 ⋅6841801.

It is a cyclic number.

It is not a de Polignac number, because 3261275251 - 2⁷ = 3261275123 is a prime.

It is a super-2 number, since 2×3261275251² = 21271832525570226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3261275231) 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, 125433651 + ... + 125433676.

It is an arithmetic number, because the mean of its divisors is an integer number (878035648).

Almost surely, 2^3261275251 is an apocalyptic number.

3261275251 is a deficient number, since it is larger than the sum of its proper divisors (250867341).

3261275251 is a wasteful number, since it uses less digits than its factorization.

3261275251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250867340.

The product of its digits is 25200, while the sum is 34.

The square root of 3261275251 is about 57107.5761261148. The cubic root of 3261275251 is about 1482.9590256261.

Adding to 3261275251 its reverse (1525721623), we get a palindrome (4786996874).

The spelling of 3261275251 in words is "three billion, two hundred sixty-one million, two hundred seventy-five thousand, two hundred fifty-one".