2620625 has 20 divisors (see below), whose sum is σ = 3748800. Its totient is φ = 1794000.

The previous prime is 2620619. The next prime is 2620633. The reversal of 2620625 is 5260262.

It is a happy number.

It is not a de Polignac number, because 2620625 - 2⁸ = 2620369 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620625.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4076 + ... + 4674.

It is an arithmetic number, because the mean of its divisors is an integer number (187440).

2^2620625 is an apocalyptic number.

2620625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2620625 is a deficient number, since it is larger than the sum of its proper divisors (1128175).

2620625 is an frugal number, since it uses more digits than its factorization.

2620625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2620625 is about 1618.8344572562. The cubic root of 2620625 is about 137.8695294209.

Adding to 2620625 its reverse (5260262), we get a palindrome (7880887).

The spelling of 2620625 in words is "two million, six hundred twenty thousand, six hundred twenty-five".