2520616 has 64 divisors (see below), whose sum is σ = 5990400. Its totient is φ = 969408.

The previous prime is 2520613. The next prime is 2520629. The reversal of 2520616 is 6160252.

It is not an unprimeable number, because it can be changed into a prime (2520611) 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, 24421 + ... + 24523.

It is an arithmetic number, because the mean of its divisors is an integer number (93600).

2^2520616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2520616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2995200).

2520616 is an abundant number, since it is smaller than the sum of its proper divisors (3469784).

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

2520616 is a wasteful number, since it uses less digits than its factorization.

2520616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2520616 is about 1587.6447965461. The cubic root of 2520616 is about 136.0929295658.

Adding to 2520616 its reverse (6160252), we get a palindrome (8680868).

It can be divided in two parts, 2520 and 616, that added together give a square (3136 = 56²).

The spelling of 2520616 in words is "two million, five hundred twenty thousand, six hundred sixteen".