5424217521 has 4 divisors (see below), whose sum is σ = 7232290032. Its totient is φ = 3616145012.

The previous prime is 5424217517. The next prime is 5424217543. The reversal of 5424217521 is 1257124245.

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 5424217521 - 2² = 5424217517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5424217511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904036251 + ... + 904036256.

It is an arithmetic number, because the mean of its divisors is an integer number (1808072508).

Almost surely, 2^5424217521 is an apocalyptic number.

It is an amenable number.

5424217521 is a deficient number, since it is larger than the sum of its proper divisors (1808072511).

5424217521 is a wasteful number, since it uses less digits than its factorization.

5424217521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808072510.

The product of its digits is 22400, while the sum is 33.

The square root of 5424217521 is about 73649.2873081607. The cubic root of 5424217521 is about 1757.0294157343.

The spelling of 5424217521 in words is "five billion, four hundred twenty-four million, two hundred seventeen thousand, five hundred twenty-one".