2561473 has 8 divisors (see below), whose sum is σ = 2659392. Its totient is φ = 2465136.

The previous prime is 2561431. The next prime is 2561491. The reversal of 2561473 is 3741652.

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-2561473 is a prime.

It is a super-2 number, since 2×2561473² = 13122287859458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2561423) 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, 3636 + ... + 4282.

It is an arithmetic number, because the mean of its divisors is an integer number (332424).

2^2561473 is an apocalyptic number.

It is an amenable number.

2561473 is a deficient number, since it is larger than the sum of its proper divisors (97919).

2561473 is a wasteful number, since it uses less digits than its factorization.

2561473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its digits is 5040, while the sum is 28.

The square root of 2561473 is about 1600.4602463042. The cubic root of 2561473 is about 136.8243081469.

The spelling of 2561473 in words is "two million, five hundred sixty-one thousand, four hundred seventy-three".