2517247 has 4 divisors (see below), whose sum is σ = 2543296. Its totient is φ = 2491200.

The previous prime is 2517239. The next prime is 2517269. The reversal of 2517247 is 7427152.

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 2517247 - 2³ = 2517239 is a prime.

It is a Duffinian number.

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 (2517227) 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, 12879 + ... + 13072.

It is an arithmetic number, because the mean of its divisors is an integer number (635824).

2^2517247 is an apocalyptic number.

2517247 is a deficient number, since it is larger than the sum of its proper divisors (26049).

2517247 is an equidigital number, since it uses as much as digits as its factorization.

2517247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26048.

The product of its digits is 3920, while the sum is 28.

The square root of 2517247 is about 1586.5834361924. The cubic root of 2517247 is about 136.0322695917.

The spelling of 2517247 in words is "two million, five hundred seventeen thousand, two hundred forty-seven".