2499955 has 8 divisors (see below), whose sum is σ = 3038400. Its totient is φ = 1974336.

The previous prime is 2499953. The next prime is 2499967. The reversal of 2499955 is 5599942.

It is a happy number.

2499955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2499955 - 2¹ = 2499953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2499953) 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 7 ways as a sum of consecutive naturals, for example, 2770 + ... + 3559.

It is an arithmetic number, because the mean of its divisors is an integer number (379800).

2^2499955 is an apocalyptic number.

2499955 is a deficient number, since it is larger than the sum of its proper divisors (538445).

2499955 is an equidigital number, since it uses as much as digits as its factorization.

2499955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413.

The product of its digits is 145800, while the sum is 43.

The square root of 2499955 is about 1581.1245997707. The cubic root of 2499955 is about 135.7200664996.

It can be divided in two parts, 249995 and 5, that added together give a square (250000 = 500²).

The spelling of 2499955 in words is "two million, four hundred ninety-nine thousand, nine hundred fifty-five".