5241625721 has 4 divisors (see below), whose sum is σ = 5262508944. Its totient is φ = 5220742500.

The previous prime is 5241625709. The next prime is 5241625723. The reversal of 5241625721 is 1275261425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5241625721 - 2¹⁰ = 5241624697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5241625723) 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, 10441235 + ... + 10441736.

It is an arithmetic number, because the mean of its divisors is an integer number (1315627236).

Almost surely, 2^5241625721 is an apocalyptic number.

It is an amenable number.

5241625721 is a deficient number, since it is larger than the sum of its proper divisors (20883223).

5241625721 is a wasteful number, since it uses less digits than its factorization.

5241625721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20883222.

The product of its digits is 33600, while the sum is 35.

The square root of 5241625721 is about 72399.0726529007. The cubic root of 5241625721 is about 1737.0887285371.

The spelling of 5241625721 in words is "five billion, two hundred forty-one million, six hundred twenty-five thousand, seven hundred twenty-one".