2575481 has 4 divisors (see below), whose sum is σ = 2617764. Its totient is φ = 2533200.

The previous prime is 2575457. The next prime is 2575487. The reversal of 2575481 is 1845752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1345600 + 1229881 = 1160^2 + 1109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2575481 is a prime.

It is a super-2 number, since 2×2575481² = 13266204762722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2575487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21050 + ... + 21171.

It is an arithmetic number, because the mean of its divisors is an integer number (654441).

2^2575481 is an apocalyptic number.

It is an amenable number.

2575481 is a deficient number, since it is larger than the sum of its proper divisors (42283).

2575481 is an equidigital number, since it uses as much as digits as its factorization.

2575481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42282.

The product of its digits is 11200, while the sum is 32.

The square root of 2575481 is about 1604.8305206470. The cubic root of 2575481 is about 137.0732731803.

The spelling of 2575481 in words is "two million, five hundred seventy-five thousand, four hundred eighty-one".