2502643 has 24 divisors (see below), whose sum is σ = 3113264. Its totient is φ = 1995840.

The previous prime is 2502637. The next prime is 2502649. The reversal of 2502643 is 3462052.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2502637) and next prime (2502649).

It is not a de Polignac number, because 2502643 - 2¹³ = 2494451 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2502649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58180 + ... + 58222.

2^2502643 is an apocalyptic number.

2502643 is a deficient number, since it is larger than the sum of its proper divisors (610621).

2502643 is a wasteful number, since it uses less digits than its factorization.

2502643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2502643 is about 1581.9743992872. The cubic root of 2502643 is about 135.7686920234.

Adding to 2502643 its reverse (3462052), we get a palindrome (5964695).

The spelling of 2502643 in words is "two million, five hundred two thousand, six hundred forty-three".