2560621 has 8 divisors (see below), whose sum is σ = 2967104. Its totient is φ = 2164320.

The previous prime is 2560603. The next prime is 2560637. The reversal of 2560621 is 1260652.

2560621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2560621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2560592 and 2560601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995 + ... + 3016.

It is an arithmetic number, because the mean of its divisors is an integer number (370888).

2^2560621 is an apocalyptic number.

It is an amenable number.

2560621 is a deficient number, since it is larger than the sum of its proper divisors (406483).

2560621 is an equidigital number, since it uses as much as digits as its factorization.

2560621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2560621 is about 1600.1940507326. The cubic root of 2560621 is about 136.8091362467.

The spelling of 2560621 in words is "two million, five hundred sixty thousand, six hundred twenty-one".