2248561 has 12 divisors (see below), whose sum is σ = 2645940. Its totient is φ = 1905120.

The previous prime is 2248537. The next prime is 2248567. The reversal of 2248561 is 1658422.

2248561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 1677025 = 756^2 + 1295^2 .

It is not a de Polignac number, because 2248561 - 2⁵ = 2248529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2248567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5131 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (220495).

2^2248561 is an apocalyptic number.

It is an amenable number.

2248561 is a deficient number, since it is larger than the sum of its proper divisors (397379).

2248561 is a wasteful number, since it uses less digits than its factorization.

2248561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 537 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2248561 is about 1499.5202566154. The cubic root of 2248561 is about 131.0091285910.

It can be divided in two parts, 2248 and 561, that added together give a square (2809 = 53²).

The spelling of 2248561 in words is "two million, two hundred forty-eight thousand, five hundred sixty-one".