2252521 has 4 divisors (see below), whose sum is σ = 2262672. Its totient is φ = 2242372.

The previous prime is 2252519. The next prime is 2252539. The reversal of 2252521 is 1252522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1252522 = 2 ⋅626261.

It is a cyclic number.

It is not a de Polignac number, because 2252521 - 2¹ = 2252519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2252221) 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, 4735 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (565668).

2^2252521 is an apocalyptic number.

It is an amenable number.

2252521 is a deficient number, since it is larger than the sum of its proper divisors (10151).

2252521 is an equidigital number, since it uses as much as digits as its factorization.

2252521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150.

The product of its digits is 400, while the sum is 19.

The square root of 2252521 is about 1500.8400980784. The cubic root of 2252521 is about 131.0859913626.

Subtracting from 2252521 its reverse (1252522), we obtain a palindrome (999999).

The spelling of 2252521 in words is "two million, two hundred fifty-two thousand, five hundred twenty-one".