2581353 has 12 divisors (see below), whose sum is σ = 3780660. Its totient is φ = 1696896.

The previous prime is 2581349. The next prime is 2581357. The reversal of 2581353 is 3531852.

It is an interprime number because it is at equal distance from previous prime (2581349) and next prime (2581357).

It can be written as a sum of positive squares in 2 ways, for example, as 870489 + 1710864 = 933^2 + 1308^2 .

It is not a de Polignac number, because 2581353 - 2² = 2581349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2581357) 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, 1308 + ... + 2621.

It is an arithmetic number, because the mean of its divisors is an integer number (315055).

2^2581353 is an apocalyptic number.

It is an amenable number.

2581353 is a deficient number, since it is larger than the sum of its proper divisors (1199307).

2581353 is a wasteful number, since it uses less digits than its factorization.

2581353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 4005 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2581353 is about 1606.6589557215. The cubic root of 2581353 is about 137.1773680820.

The spelling of 2581353 in words is "two million, five hundred eighty-one thousand, three hundred fifty-three".