2521630416 has 40 divisors (see below), whose sum is σ = 6573988960. Its totient is φ = 832830336.

The previous prime is 2521630411. The next prime is 2521630439. The reversal of 2521630416 is 6140361252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521630411) 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 in 7 ways as a sum of consecutive naturals, for example, 235750 + ... + 246213.

It is an arithmetic number, because the mean of its divisors is an integer number (164349724).

Almost surely, 2^2521630416 is an apocalyptic number.

It is an amenable number.

2521630416 is an abundant number, since it is smaller than the sum of its proper divisors (4052358544).

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

2521630416 is a wasteful number, since it uses less digits than its factorization.

2521630416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482083 (or 482077 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2521630416 is about 50215.8382982899. The cubic root of 2521630416 is about 1361.1118387739. Note that the first 3 decimals are identical.

Adding to 2521630416 its reverse (6140361252), we get a palindrome (8661991668).

The spelling of 2521630416 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, four hundred sixteen".