2663625 has 16 divisors (see below), whose sum is σ = 4432896. Its totient is φ = 1420400.

The previous prime is 2663603. The next prime is 2663627. The reversal of 2663625 is 5263662.

It is not a de Polignac number, because 2663625 - 2⁷ = 2663497 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2663592 and 2663601.

It is not an unprimeable number, because it can be changed into a prime (2663627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177 + ... + 3926.

It is an arithmetic number, because the mean of its divisors is an integer number (277056).

2^2663625 is an apocalyptic number.

2663625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2663625 is a deficient number, since it is larger than the sum of its proper divisors (1769271).

2663625 is an equidigital number, since it uses as much as digits as its factorization.

2663625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121 (or 7111 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 2663625 is about 1632.0615797206. The cubic root of 2663625 is about 138.6195104643.

The spelling of 2663625 in words is "two million, six hundred sixty-three thousand, six hundred twenty-five".