3255610261 has 4 divisors (see below), whose sum is σ = 3263343724. Its totient is φ = 3247876800.

The previous prime is 3255610249. The next prime is 3255610399. The reversal of 3255610261 is 1620165523.

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 382007025 + 2873603236 = 19545^2 + 53606^2 .

It is a cyclic number.

It is not a de Polignac number, because 3255610261 - 2⁷ = 3255610133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3255610201) 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, 3866100 + ... + 3866941.

It is an arithmetic number, because the mean of its divisors is an integer number (815835931).

Almost surely, 2^3255610261 is an apocalyptic number.

It is an amenable number.

3255610261 is a deficient number, since it is larger than the sum of its proper divisors (7733463).

3255610261 is an equidigital number, since it uses as much as digits as its factorization.

3255610261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7733462.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 3255610261 is about 57057.9552823268. The cubic root of 3255610261 is about 1482.0998712172.

Adding to 3255610261 its reverse (1620165523), we get a palindrome (4875775784).

The spelling of 3255610261 in words is "three billion, two hundred fifty-five million, six hundred ten thousand, two hundred sixty-one".