2265625 has 16 divisors (see below), whose sum is σ = 2929680. Its totient is φ = 1750000.

The previous prime is 2265623. The next prime is 2265631. The reversal of 2265625 is 5265622.

It can be written as a sum of positive squares in 8 ways, for example, as 1774224 + 491401 = 1332^2 + 701^2 .

It is not a de Polignac number, because 2265625 - 2¹ = 2265623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2265593 and 2265602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78111 + ... + 78139.

It is an arithmetic number, because the mean of its divisors is an integer number (183105).

2^2265625 is an apocalyptic number.

2265625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2265625 is a deficient number, since it is larger than the sum of its proper divisors (664055).

2265625 is an frugal number, since it uses more digits than its factorization.

2265625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 34 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 2265625 is about 1505.1993223490. The cubic root of 2265625 is about 131.3396968123.

The spelling of 2265625 in words is "two million, two hundred sixty-five thousand, six hundred twenty-five".