2566629 has 12 divisors (see below), whose sum is σ = 3992716. Its totient is φ = 1579392.

The previous prime is 2566601. The next prime is 2566633. The reversal of 2566629 is 9266652.

It can be written as a sum of positive squares in 2 ways, for example, as 396900 + 2169729 = 630^2 + 1473^2 .

It is not a de Polignac number, because 2566629 - 2¹² = 2562533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2566593 and 2566602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10852 + ... + 11085.

2^2566629 is an apocalyptic number.

It is an amenable number.

2566629 is a deficient number, since it is larger than the sum of its proper divisors (1426087).

2566629 is a wasteful number, since it uses less digits than its factorization.

2566629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21956 (or 21953 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2566629 is about 1602.0702231800. The cubic root of 2566629 is about 136.9160513634.

The spelling of 2566629 in words is "two million, five hundred sixty-six thousand, six hundred twenty-nine".