5523245621 has 4 divisors (see below), whose sum is σ = 5566735872. Its totient is φ = 5479755372.

The previous prime is 5523245591. The next prime is 5523245657. The reversal of 5523245621 is 1265423255.

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 5523245621 - 2¹⁴ = 5523229237 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 (5523245521) 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, 21744935 + ... + 21745188.

It is an arithmetic number, because the mean of its divisors is an integer number (1391683968).

Almost surely, 2^5523245621 is an apocalyptic number.

It is an amenable number.

5523245621 is a deficient number, since it is larger than the sum of its proper divisors (43490251).

5523245621 is a wasteful number, since it uses less digits than its factorization.

5523245621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43490250.

The product of its digits is 72000, while the sum is 35.

The square root of 5523245621 is about 74318.5415693823. The cubic root of 5523245621 is about 1767.6574947735.

Adding to 5523245621 its reverse (1265423255), we get a palindrome (6788668876).

The spelling of 5523245621 in words is "five billion, five hundred twenty-three million, two hundred forty-five thousand, six hundred twenty-one".