2261625306 has 8 divisors (see below), whose sum is σ = 4523250624. Its totient is φ = 753875100.

The previous prime is 2261625299. The next prime is 2261625323. The reversal of 2261625306 is 6035261622.

It is a sphenic number, since it is the product of 3 distinct primes.

2261625306 is an admirable number.

It is a super-2 number, since 2×2261625306² = 10229898049479187272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188468770 + ... + 188468781.

It is an arithmetic number, because the mean of its divisors is an integer number (565406328).

Almost surely, 2^2261625306 is an apocalyptic number.

2261625306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261625306 is a wasteful number, since it uses less digits than its factorization.

2261625306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376937556.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 2261625306 is about 47556.5485080656. The cubic root of 2261625306 is about 1312.6236303317.

Adding to 2261625306 its reverse (6035261622), we get a palindrome (8296886928).

The spelling of 2261625306 in words is "two billion, two hundred sixty-one million, six hundred twenty-five thousand, three hundred six".