2512857 has 4 divisors (see below), whose sum is σ = 3350480. Its totient is φ = 1675236.

The previous prime is 2512847. The next prime is 2512897. The reversal of 2512857 is 7582152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2512857 - 2⁴ = 2512841 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418807 + ... + 418812.

It is an arithmetic number, because the mean of its divisors is an integer number (837620).

2^2512857 is an apocalyptic number.

It is an amenable number.

2512857 is a deficient number, since it is larger than the sum of its proper divisors (837623).

2512857 is an equidigital number, since it uses as much as digits as its factorization.

2512857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837622.

The product of its digits is 5600, while the sum is 30.

The square root of 2512857 is about 1585.1993565479. The cubic root of 2512857 is about 135.9531449030.

The spelling of 2512857 in words is "two million, five hundred twelve thousand, eight hundred fifty-seven".