2507985 has 12 divisors (see below), whose sum is σ = 4347252. Its totient is φ = 1337568.

The previous prime is 2507963. The next prime is 2508001. The reversal of 2507985 is 5897052.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 859329 = 1284^2 + 927^2 .

It is not a de Polignac number, because 2507985 - 2⁹ = 2507473 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27822 + ... + 27911.

It is an arithmetic number, because the mean of its divisors is an integer number (362271).

2^2507985 is an apocalyptic number.

It is an amenable number.

2507985 is a deficient number, since it is larger than the sum of its proper divisors (1839267).

2507985 is a wasteful number, since it uses less digits than its factorization.

2507985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55744 (or 55741 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2507985 is about 1583.6618957341. The cubic root of 2507985 is about 135.8652247583.

The spelling of 2507985 in words is "two million, five hundred seven thousand, nine hundred eighty-five".