2421525616 has 20 divisors (see below), whose sum is σ = 4706801424. Its totient is φ = 1206867200.

The previous prime is 2421525593. The next prime is 2421525653. The reversal of 2421525616 is 6165251242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238345 + ... + 248296.

Almost surely, 2^2421525616 is an apocalyptic number.

It is an amenable number.

2421525616 is a deficient number, since it is larger than the sum of its proper divisors (2285275808).

2421525616 is a wasteful number, since it uses less digits than its factorization.

2421525616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486960 (or 486954 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2421525616 is about 49208.9993395517. Note that the first 3 decimals coincide. The cubic root of 2421525616 is about 1342.8567582227.

Adding to 2421525616 its reverse (6165251242), we get a palindrome (8586776858).

The spelling of 2421525616 in words is "two billion, four hundred twenty-one million, five hundred twenty-five thousand, six hundred sixteen".