2250521 has 12 divisors (see below), whose sum is σ = 2820132. Its totient is φ = 1780128.

The previous prime is 2250509. The next prime is 2250559. The reversal of 2250521 is 1250522.

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 1177225 = 1036^2 + 1085^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2250521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2250521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250581) 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, 1130 + ... + 2403.

It is an arithmetic number, because the mean of its divisors is an integer number (235011).

2^2250521 is an apocalyptic number.

It is an amenable number.

2250521 is a deficient number, since it is larger than the sum of its proper divisors (569611).

2250521 is a wasteful number, since it uses less digits than its factorization.

2250521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2250521 is about 1500.1736566145. The cubic root of 2250521 is about 131.0471830504.

Subtracting from 2250521 its reverse (1250522), we obtain a palindrome (999999).

The spelling of 2250521 in words is "two million, two hundred fifty thousand, five hundred twenty-one".