2664625 has 8 divisors (see below), whose sum is σ = 3325608. Its totient is φ = 2131600.

The previous prime is 2664601. The next prime is 2664643. The reversal of 2664625 is 5264662.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 2585664 = 281^2 + 1608^2 .

It is not a de Polignac number, because 2664625 - 2⁵ = 2664593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10534 + ... + 10783.

It is an arithmetic number, because the mean of its divisors is an integer number (415701).

2^2664625 is an apocalyptic number.

2664625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2664625 is a deficient number, since it is larger than the sum of its proper divisors (660983).

2664625 is an equidigital number, since it uses as much as digits as its factorization.

2664625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332 (or 21322 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 2664625 is about 1632.3679119610. The cubic root of 2664625 is about 138.6368555193.

The spelling of 2664625 in words is "two million, six hundred sixty-four thousand, six hundred twenty-five".