2502521 has 4 divisors (see below), whose sum is σ = 2860032. Its totient is φ = 2145012.

The previous prime is 2502481. The next prime is 2502527. The reversal of 2502521 is 1252052.

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.

It is a cyclic number.

It is not a de Polignac number, because 2502521 - 2¹⁴ = 2486137 is a prime.

It is a super-2 number, since 2×2502521² = 12525222710882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2502521.

It is not an unprimeable number, because it can be changed into a prime (2502527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178745 + ... + 178758.

It is an arithmetic number, because the mean of its divisors is an integer number (715008).

2^2502521 is an apocalyptic number.

It is an amenable number.

2502521 is a deficient number, since it is larger than the sum of its proper divisors (357511).

2502521 is an equidigital number, since it uses as much as digits as its factorization.

2502521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357510.

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

The square root of 2502521 is about 1581.9358394069. The cubic root of 2502521 is about 135.7664858159.

Adding to 2502521 its reverse (1252052), we get a palindrome (3754573).

It can be divided in two parts, 25025 and 21, that multiplied together give a palindrome (525525).

The spelling of 2502521 in words is "two million, five hundred two thousand, five hundred twenty-one".