2502691 has 4 divisors (see below), whose sum is σ = 2510584. Its totient is φ = 2494800.

The previous prime is 2502683. The next prime is 2502701. The reversal of 2502691 is 1962052.

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

It is a cyclic number.

It is not a de Polignac number, because 2502691 - 2³ = 2502683 is a prime.

It is a Duffinian number.

2502691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2502191) 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, 3450 + ... + 4111.

It is an arithmetic number, because the mean of its divisors is an integer number (627646).

2^2502691 is an apocalyptic number.

2502691 is a deficient number, since it is larger than the sum of its proper divisors (7893).

2502691 is an equidigital number, since it uses as much as digits as its factorization.

2502691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7892.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2502691 is about 1581.9895701300. The cubic root of 2502691 is about 135.7695600199.

The spelling of 2502691 in words is "two million, five hundred two thousand, six hundred ninety-one".