2521502 has 4 divisors (see below), whose sum is σ = 3782256. Its totient is φ = 1260750.

The previous prime is 2521501. The next prime is 2521507. The reversal of 2521502 is 2051252.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521501) 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 as a sum of consecutive naturals, namely, 630374 + ... + 630377.

It is an arithmetic number, because the mean of its divisors is an integer number (945564).

2^2521502 is an apocalyptic number.

2521502 is a deficient number, since it is larger than the sum of its proper divisors (1260754).

2521502 is a wasteful number, since it uses less digits than its factorization.

2521502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260753.

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

The square root of 2521502 is about 1587.9238016983. The cubic root of 2521502 is about 136.1088733154.

Adding to 2521502 its reverse (2051252), we get a palindrome (4572754).

The spelling of 2521502 in words is "two million, five hundred twenty-one thousand, five hundred two".