2621266325 has 12 divisors (see below), whose sum is σ = 3329648868. Its totient is φ = 2045865600.

The previous prime is 2621266321. The next prime is 2621266327. The reversal of 2621266325 is 5236621262.

It can be written as a sum of positive squares in 6 ways, for example, as 310252996 + 2311013329 = 17614^2 + 48073^2 .

It is not a de Polignac number, because 2621266325 - 2² = 2621266321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621266321) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1277642 + ... + 1279691.

It is an arithmetic number, because the mean of its divisors is an integer number (277470739).

Almost surely, 2^2621266325 is an apocalyptic number.

2621266325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2621266325 is a deficient number, since it is larger than the sum of its proper divisors (708382543).

2621266325 is a wasteful number, since it uses less digits than its factorization.

2621266325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557384 (or 2557379 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 2621266325 is about 51198.3039269857. The cubic root of 2621266325 is about 1378.8077507978.

Adding to 2621266325 its reverse (5236621262), we get a palindrome (7857887587).

The spelling of 2621266325 in words is "two billion, six hundred twenty-one million, two hundred sixty-six thousand, three hundred twenty-five".