2865625 has 24 divisors (see below), whose sum is σ = 4124736. Its totient is φ = 1950000.

The previous prime is 2865623. The next prime is 2865641. The reversal of 2865625 is 5265682.

It is not a de Polignac number, because 2865625 - 2¹ = 2865623 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2865623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21810 + ... + 21940.

It is an arithmetic number, because the mean of its divisors is an integer number (171864).

2^2865625 is an apocalyptic number.

2865625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2865625 is a deficient number, since it is larger than the sum of its proper divisors (1259111).

2865625 is an frugal number, since it uses more digits than its factorization.

2865625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 143 counting only the distinct ones).

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

The square root of 2865625 is about 1692.8157017230. The cubic root of 2865625 is about 142.0386227017.

The spelling of 2865625 in words is "two million, eight hundred sixty-five thousand, six hundred twenty-five".