5232251621 has 4 divisors (see below), whose sum is σ = 5237048544. Its totient is φ = 5227454700.

The previous prime is 5232251581. The next prime is 5232251639. The reversal of 5232251621 is 1261522325.

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 a de Polignac number, because none of the positive numbers 2^k-5232251621 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 (5232251221) 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, 2396825 + ... + 2399006.

It is an arithmetic number, because the mean of its divisors is an integer number (1309262136).

Almost surely, 2^5232251621 is an apocalyptic number.

It is an amenable number.

5232251621 is a deficient number, since it is larger than the sum of its proper divisors (4796923).

5232251621 is a wasteful number, since it uses less digits than its factorization.

5232251621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796922.

The product of its digits is 7200, while the sum is 29.

The square root of 5232251621 is about 72334.3045933256. The cubic root of 5232251621 is about 1736.0525767035.

Adding to 5232251621 its reverse (1261522325), we get a palindrome (6493773946).

The spelling of 5232251621 in words is "five billion, two hundred thirty-two million, two hundred fifty-one thousand, six hundred twenty-one".