2521016 has 8 divisors (see below), whose sum is σ = 4726920. Its totient is φ = 1260504.

The previous prime is 2521003. The next prime is 2521019. The reversal of 2521016 is 6101252.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2520985 and 2521003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521019) by changing a digit.

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 as a sum of consecutive naturals, namely, 157556 + ... + 157571.

It is an arithmetic number, because the mean of its divisors is an integer number (590865).

2^2521016 is an apocalyptic number.

It is an amenable number.

2521016 is a deficient number, since it is larger than the sum of its proper divisors (2205904).

2521016 is a wasteful number, since it uses less digits than its factorization.

2521016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315133 (or 315129 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2521016 is about 1587.7707643108. The cubic root of 2521016 is about 136.1001281094.

Adding to 2521016 its reverse (6101252), we get a palindrome (8622268).

The spelling of 2521016 in words is "two million, five hundred twenty-one thousand, sixteen".