2620825 has 12 divisors (see below), whose sum is σ = 3293440. Its totient is φ = 2068560.

The previous prime is 2620819. The next prime is 2620829. The reversal of 2620825 is 5280262.

It is not a de Polignac number, because 2620825 - 2⁹ = 2620313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

2620825 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620825.

It is not an unprimeable number, because it can be changed into a prime (2620829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1312 + ... + 2638.

2^2620825 is an apocalyptic number.

2620825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2620825 is a deficient number, since it is larger than the sum of its proper divisors (672615).

2620825 is a wasteful number, since it uses less digits than its factorization.

2620825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2620825 is about 1618.8962289165. The cubic root of 2620825 is about 137.8730366256.

The spelling of 2620825 in words is "two million, six hundred twenty thousand, eight hundred twenty-five".