2520606 has 32 divisors (see below), whose sum is σ = 5556096. Its totient is φ = 756000.

The previous prime is 2520601. The next prime is 2520611. The reversal of 2520606 is 6060252.

2520606 = T₆₈ + T₆₉ + ... + T₂₄₈.

It is an interprime number because it is at equal distance from previous prime (2520601) and next prime (2520611).

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

2520606 is a modest number, since divided by 606 gives 252 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520601) 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, 11841 + ... + 12051.

It is an arithmetic number, because the mean of its divisors is an integer number (173628).

2^2520606 is an apocalyptic number.

2520606 is an abundant number, since it is smaller than the sum of its proper divisors (3035490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2520606 is a wasteful number, since it uses less digits than its factorization.

2520606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2520606 is about 1587.6416472240. The cubic root of 2520606 is about 136.0927495925.

Adding to 2520606 its reverse (6060252), we get a palindrome (8580858).

The spelling of 2520606 in words is "two million, five hundred twenty thousand, six hundred six".