2658625 has 8 divisors (see below), whose sum is σ = 3318120. Its totient is φ = 2126800.

The previous prime is 2658611. The next prime is 2658637. The reversal of 2658625 is 5268562.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 2582449 = 276^2 + 1607^2 .

It is not a de Polignac number, because 2658625 - 2⁷ = 2658497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10510 + ... + 10759.

It is an arithmetic number, because the mean of its divisors is an integer number (414765).

2^2658625 is an apocalyptic number.

2658625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2658625 is a deficient number, since it is larger than the sum of its proper divisors (659495).

2658625 is an equidigital number, since it uses as much as digits as its factorization.

2658625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21284 (or 21274 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2658625 is about 1630.5290552456. The cubic root of 2658625 is about 138.5327200082.

The spelling of 2658625 in words is "two million, six hundred fifty-eight thousand, six hundred twenty-five".