2730625 has 20 divisors (see below), whose sum is σ = 3626964. Its totient is φ = 2048000.

The previous prime is 2730601. The next prime is 2730643. The reversal of 2730625 is 5260372.

It can be written as a sum of positive squares in 10 ways, for example, as 848241 + 1882384 = 921^2 + 1372^2 .

It is not a de Polignac number, because 2730625 - 2⁵ = 2730593 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 2¹⁹ + 7⁴ + 3³ + 0 + 6⁸ + 2¹⁹ + 5 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2730625.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10497 + ... + 10753.

2^2730625 is an apocalyptic number.

2730625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2730625 is a deficient number, since it is larger than the sum of its proper divisors (896339).

2730625 is an equidigital number, since it uses as much as digits as its factorization.

2730625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2730625 is about 1652.4602869661. The cubic root of 2730625 is about 139.7721634326.

Adding to 2730625 its reverse (5260372), we get a palindrome (7990997).

The spelling of 2730625 in words is "two million, seven hundred thirty thousand, six hundred twenty-five".