2512985 has 4 divisors (see below), whose sum is σ = 3015588. Its totient is φ = 2010384.

The previous prime is 2512967. The next prime is 2512999. The reversal of 2512985 is 5892152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 597529 + 1915456 = 773^2 + 1384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2512985 is a prime.

It is a super-2 number, since 2×2512985² = 12630187220450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251294 + ... + 251303.

It is an arithmetic number, because the mean of its divisors is an integer number (753897).

2^2512985 is an apocalyptic number.

It is an amenable number.

2512985 is a deficient number, since it is larger than the sum of its proper divisors (502603).

2512985 is an equidigital number, since it uses as much as digits as its factorization.

2512985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502602.

The product of its digits is 7200, while the sum is 32.

The square root of 2512985 is about 1585.2397295047. The cubic root of 2512985 is about 135.9554532592.

The spelling of 2512985 in words is "two million, five hundred twelve thousand, nine hundred eighty-five".