5701521521 has 4 divisors (see below), whose sum is σ = 5701730532. Its totient is φ = 5701312512.

The previous prime is 5701521517. The next prime is 5701521569. The reversal of 5701521521 is 1251251075.

5701521521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770673121 + 4930848400 = 27761^2 + 70220^2 .

It is a cyclic number.

It is not a de Polignac number, because 5701521521 - 2² = 5701521517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5701521821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56120 + ... + 120633.

It is an arithmetic number, because the mean of its divisors is an integer number (1425432633).

Almost surely, 2^5701521521 is an apocalyptic number.

It is an amenable number.

5701521521 is a deficient number, since it is larger than the sum of its proper divisors (209011).

5701521521 is a wasteful number, since it uses less digits than its factorization.

5701521521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209010.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 5701521521 is about 75508.4201993394. The cubic root of 5701521521 is about 1786.4749160992.

Adding to 5701521521 its reverse (1251251075), we get a palindrome (6952772596).

The spelling of 5701521521 in words is "five billion, seven hundred one million, five hundred twenty-one thousand, five hundred twenty-one".