2499205 has 8 divisors (see below), whose sum is σ = 3030552. Its totient is φ = 1978368.

The previous prime is 2499197. The next prime is 2499247. The reversal of 2499205 is 5029942.

It can be written as a sum of positive squares in 4 ways, for example, as 314721 + 2184484 = 561^2 + 1478^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2499205 - 2³ = 2499197 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (378819).

2^2499205 is an apocalyptic number.

It is an amenable number.

2499205 is a deficient number, since it is larger than the sum of its proper divisors (531347).

2499205 is an equidigital number, since it uses as much as digits as its factorization.

2499205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2499205 is about 1580.8874090206. The cubic root of 2499205 is about 135.7064928911.

It can be divided in two parts, 2499 and 205, that added together give a square (2704 = 52²).

The spelling of 2499205 in words is "two million, four hundred ninety-nine thousand, two hundred five".