4525702721 has 2 divisors, whose sum is σ = 4525702722. Its totient is φ = 4525702720.

The previous prime is 4525702717. The next prime is 4525702733. The reversal of 4525702721 is 1272075254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2741569600 + 1784133121 = 52360^2 + 42239^2 .

It is a cyclic number.

It is not a de Polignac number, because 4525702721 - 2² = 4525702717 is a prime.

It is not a weakly prime, because it can be changed into another prime (4525702711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2262851360 + 2262851361.

It is an arithmetic number, because the mean of its divisors is an integer number (2262851361).

Almost surely, 2^4525702721 is an apocalyptic number.

It is an amenable number.

4525702721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4525702721 is an equidigital number, since it uses as much as digits as its factorization.

4525702721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 4525702721 is about 67273.3433166511. The cubic root of 4525702721 is about 1654.1009371885.

Adding to 4525702721 its reverse (1272075254), we get a palindrome (5797777975).

The spelling of 4525702721 in words is "four billion, five hundred twenty-five million, seven hundred two thousand, seven hundred twenty-one".