4525140221 has 16 divisors (see below), whose sum is σ = 5413741824. Its totient is φ = 3698158464.

The previous prime is 4525140161. The next prime is 4525140229. The reversal of 4525140221 is 1220415254.

It is a de Polignac number, because none of the positive numbers 2^k-4525140221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4525140229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5495 + ... + 95291.

It is an arithmetic number, because the mean of its divisors is an integer number (338358864).

Almost surely, 2^4525140221 is an apocalyptic number.

It is an amenable number.

4525140221 is a deficient number, since it is larger than the sum of its proper divisors (888601603).

4525140221 is a wasteful number, since it uses less digits than its factorization.

4525140221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90140.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4525140221 is about 67269.1624817791. The cubic root of 4525140221 is about 1654.0324048975.

Adding to 4525140221 its reverse (1220415254), we get a palindrome (5745555475).

The spelling of 4525140221 in words is "four billion, five hundred twenty-five million, one hundred forty thousand, two hundred twenty-one".