4642521225 has 48 divisors (see below), whose sum is σ = 7896994560. Its totient is φ = 2405132800.

The previous prime is 4642521217. The next prime is 4642521229. The reversal of 4642521225 is 5221252464.

It is not a de Polignac number, because 4642521225 - 2³ = 4642521217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4642521229) 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 47 ways as a sum of consecutive naturals, for example, 731767 + ... + 738083.

It is an arithmetic number, because the mean of its divisors is an integer number (164520720).

Almost surely, 2^4642521225 is an apocalyptic number.

It is an amenable number.

4642521225 is a deficient number, since it is larger than the sum of its proper divisors (3254473335).

4642521225 is a wasteful number, since it uses less digits than its factorization.

4642521225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6605 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 4642521225 is about 68136.0493791649. The cubic root of 4642521225 is about 1668.2122244188.

Adding to 4642521225 its reverse (5221252464), we get a palindrome (9863773689).

The spelling of 4642521225 in words is "four billion, six hundred forty-two million, five hundred twenty-one thousand, two hundred twenty-five".