2500247 has 4 divisors (see below), whose sum is σ = 2506176. Its totient is φ = 2494320.

The previous prime is 2500213. The next prime is 2500273. The reversal of 2500247 is 7420052.

2500247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2500247 is a prime.

It is a super-2 number, since 2×2500247² = 12502470122018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279 + ... + 3192.

It is an arithmetic number, because the mean of its divisors is an integer number (626544).

2^2500247 is an apocalyptic number.

2500247 is a deficient number, since it is larger than the sum of its proper divisors (5929).

2500247 is an equidigital number, since it uses as much as digits as its factorization.

2500247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5928.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2500247 is about 1581.2169364132. The cubic root of 2500247 is about 135.7253504236.

Adding to 2500247 its reverse (7420052), we get a palindrome (9920299).

The spelling of 2500247 in words is "two million, five hundred thousand, two hundred forty-seven".