5258371621 has 4 divisors (see below), whose sum is σ = 5427996544. Its totient is φ = 5088746700.

The previous prime is 5258371597. The next prime is 5258371631. The reversal of 5258371621 is 1261738525.

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 5258371621 - 2¹¹ = 5258369573 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 (5258371631) 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, 84812415 + ... + 84812476.

It is an arithmetic number, because the mean of its divisors is an integer number (1356999136).

Almost surely, 2^5258371621 is an apocalyptic number.

It is an amenable number.

5258371621 is a deficient number, since it is larger than the sum of its proper divisors (169624923).

5258371621 is a wasteful number, since it uses less digits than its factorization.

5258371621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169624922.

The product of its digits is 100800, while the sum is 40.

The square root of 5258371621 is about 72514.6303927697. The cubic root of 5258371621 is about 1738.9366406588.

The spelling of 5258371621 in words is "five billion, two hundred fifty-eight million, three hundred seventy-one thousand, six hundred twenty-one".