2251625 has 8 divisors (see below), whose sum is σ = 2810184. Its totient is φ = 1801200.

The previous prime is 2251603. The next prime is 2251637. The reversal of 2251625 is 5261522.

2251625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 2247001 = 68^2 + 1499^2 .

It is not a de Polignac number, because 2251625 - 2⁸ = 2251369 is a prime.

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 2251625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8882 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (351273).

2^2251625 is an apocalyptic number.

2251625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251625 is a deficient number, since it is larger than the sum of its proper divisors (558559).

2251625 is an equidigital number, since it uses as much as digits as its factorization.

2251625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18028 (or 18018 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 2251625 is about 1500.5415689010. The cubic root of 2251625 is about 131.0686080803.

The spelling of 2251625 in words is "two million, two hundred fifty-one thousand, six hundred twenty-five".