2280625 has 20 divisors (see below), whose sum is σ = 2952180. Its totient is φ = 1760000.

The previous prime is 2280623. The next prime is 2280631. The reversal of 2280625 is 5260822.

It can be written as a sum of positive squares in 10 ways, for example, as 2274064 + 6561 = 1508^2 + 81^2 .

It is not a de Polignac number, because 2280625 - 2¹ = 2280623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹⁷ + 8⁴ + 0 + 6⁶ + 2²¹ + 5⁴ .

2280625 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2280625.

It is not an unprimeable number, because it can be changed into a prime (2280623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25581 + ... + 25669.

It is an arithmetic number, because the mean of its divisors is an integer number (147609).

2^2280625 is an apocalyptic number.

2280625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2280625 is a deficient number, since it is larger than the sum of its proper divisors (671555).

2280625 is an frugal number, since it uses more digits than its factorization.

2280625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2280625 is about 1510.1738310539. The cubic root of 2280625 is about 131.6289126030.

The spelling of 2280625 in words is "two million, two hundred eighty thousand, six hundred twenty-five".