2561219 has 8 divisors (see below), whose sum is σ = 2715840. Its totient is φ = 2408616.

The previous prime is 2561201. The next prime is 2561227. The reversal of 2561219 is 9121652.

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-2561219 is a prime.

It is a super-2 number, since 2×2561219² = 13119685531922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2561239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684 + ... + 3510.

It is an arithmetic number, because the mean of its divisors is an integer number (339480).

2^2561219 is an apocalyptic number.

2561219 is a deficient number, since it is larger than the sum of its proper divisors (154621).

2561219 is a wasteful number, since it uses less digits than its factorization.

2561219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its digits is 1080, while the sum is 26.

The square root of 2561219 is about 1600.3808921629. The cubic root of 2561219 is about 136.8197854207.

The spelling of 2561219 in words is "two million, five hundred sixty-one thousand, two hundred nineteen".