2520521642 has 16 divisors (see below), whose sum is σ = 3839681472. Its totient is φ = 1240652160.

The previous prime is 2520521603. The next prime is 2520521683. The reversal of 2520521642 is 2461250252.

2520521642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240218 + ... + 250490.

It is an arithmetic number, because the mean of its divisors is an integer number (239980092).

Almost surely, 2^2520521642 is an apocalyptic number.

2520521642 is a deficient number, since it is larger than the sum of its proper divisors (1319159830).

2520521642 is a wasteful number, since it uses less digits than its factorization.

2520521642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2520521642 is about 50204.7970018802. The cubic root of 2520521642 is about 1360.9123135437.

Adding to 2520521642 its reverse (2461250252), we get a palindrome (4981771894).

The spelling of 2520521642 in words is "two billion, five hundred twenty million, five hundred twenty-one thousand, six hundred forty-two".