2856625 has 8 divisors (see below), whose sum is σ = 3565224. Its totient is φ = 2285200.

The previous prime is 2856617. The next prime is 2856653. The reversal of 2856625 is 5266582.

It can be written as a sum of positive squares in 4 ways, for example, as 419904 + 2436721 = 648^2 + 1561^2 .

It is not a de Polignac number, because 2856625 - 2³ = 2856617 is a prime.

It is a Duffinian 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, 11302 + ... + 11551.

It is an arithmetic number, because the mean of its divisors is an integer number (445653).

2^2856625 is an apocalyptic number.

2856625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2856625 is a deficient number, since it is larger than the sum of its proper divisors (708599).

2856625 is an equidigital number, since it uses as much as digits as its factorization.

2856625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22868 (or 22858 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2856625 is about 1690.1553183066. The cubic root of 2856625 is about 141.8897676543.

It can be divided in two parts, 2856 and 625, that added together give a square (3481 = 59²).

The spelling of 2856625 in words is "two million, eight hundred fifty-six thousand, six hundred twenty-five".