5240367021 has 4 divisors (see below), whose sum is σ = 6987156032. Its totient is φ = 3493578012.

The previous prime is 5240367001. The next prime is 5240367061. The reversal of 5240367021 is 1207630425.

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 not a de Polignac number, because 5240367021 - 2¹⁰ = 5240365997 is a prime.

It is a super-2 number, since 2×5240367021² = 54922893029568828882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5240367021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5240367001) 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, 873394501 + ... + 873394506.

It is an arithmetic number, because the mean of its divisors is an integer number (1746789008).

Almost surely, 2^5240367021 is an apocalyptic number.

It is an amenable number.

5240367021 is a deficient number, since it is larger than the sum of its proper divisors (1746789011).

5240367021 is a wasteful number, since it uses less digits than its factorization.

5240367021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746789010.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 5240367021 is about 72390.3793400753. The cubic root of 5240367021 is about 1736.9496718945.

Adding to 5240367021 its reverse (1207630425), we get a palindrome (6447997446).

The spelling of 5240367021 in words is "five billion, two hundred forty million, three hundred sixty-seven thousand, twenty-one".