2502681 has 8 divisors (see below), whose sum is σ = 3418464. Its totient is φ = 1627680.

The previous prime is 2502677. The next prime is 2502683. The reversal of 2502681 is 1862052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2502681 - 2² = 2502677 is a prime.

It is a super-2 number, since 2×2502681² = 12526824375522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2502683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10051 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (427308).

2^2502681 is an apocalyptic number.

It is an amenable number.

2502681 is a deficient number, since it is larger than the sum of its proper divisors (915783).

2502681 is a wasteful number, since it uses less digits than its factorization.

2502681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20391.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2502681 is about 1581.9864095497. The cubic root of 2502681 is about 135.7693791882.

The spelling of 2502681 in words is "two million, five hundred two thousand, six hundred eighty-one".