2616625 has 24 divisors (see below), whose sum is σ = 3610152. Its totient is φ = 1892000.

The previous prime is 2616613. The next prime is 2616637. The reversal of 2616625 is 5266162.

It is an interprime number because it is at equal distance from previous prime (2616613) and next prime (2616637).

It can be written as a sum of positive squares in 4 ways, for example, as 1936 + 2614689 = 44^2 + 1617^2 .

It is not a de Polignac number, because 2616625 - 2¹⁵ = 2583857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2616593 and 2616602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15039 + ... + 15211.

It is an arithmetic number, because the mean of its divisors is an integer number (150423).

2^2616625 is an apocalyptic number.

2616625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2616625 is the 865-th nonagonal number.

It is an amenable number.

2616625 is a deficient number, since it is larger than the sum of its proper divisors (993527).

2616625 is a wasteful number, since it uses less digits than its factorization.

2616625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 189 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 2616625 is about 1617.5985286838. The cubic root of 2616625 is about 137.7993478244.

It can be divided in two parts, 261 and 6625, that added together give a palindrome (6886).

The spelling of 2616625 in words is "two million, six hundred sixteen thousand, six hundred twenty-five".