2056481 has 6 divisors (see below), whose sum is σ = 2392290. Its totient is φ = 1762656.

The previous prime is 2056463. The next prime is 2056489. The reversal of 2056481 is 1846502.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 379456 = 1295^2 + 616^2 .

It is not a de Polignac number, because 2056481 - 2¹⁴ = 2040097 is a prime.

It is a super-2 number, since 2×2056481² = 8458228206722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056481.

It is not an unprimeable number, because it can be changed into a prime (2056489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20936 + ... + 21033.

It is an arithmetic number, because the mean of its divisors is an integer number (398715).

2^2056481 is an apocalyptic number.

It is an amenable number.

2056481 is a deficient number, since it is larger than the sum of its proper divisors (335809).

2056481 is an equidigital number, since it uses as much as digits as its factorization.

2056481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41983 (or 41976 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2056481 is about 1434.0435837170. The cubic root of 2056481 is about 127.1671389409.

The spelling of 2056481 in words is "two million, fifty-six thousand, four hundred eighty-one".