5245504021 has 16 divisors (see below), whose sum is σ = 5753160000. Its totient is φ = 4763477376.

The previous prime is 5245504007. The next prime is 5245504027. The reversal of 5245504021 is 1204055425.

It is a cyclic number.

It is not a de Polignac number, because 5245504021 - 2⁹ = 5245503509 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 (5245504027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42345 + ... + 110833.

It is an arithmetic number, because the mean of its divisors is an integer number (359572500).

Almost surely, 2^5245504021 is an apocalyptic number.

It is an amenable number.

5245504021 is a deficient number, since it is larger than the sum of its proper divisors (507655979).

5245504021 is a wasteful number, since it uses less digits than its factorization.

5245504021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68676.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 5245504021 is about 72425.8518831501. The cubic root of 5245504021 is about 1737.5170492332.

Adding to 5245504021 its reverse (1204055425), we get a palindrome (6449559446).

The spelling of 5245504021 in words is "five billion, two hundred forty-five million, five hundred four thousand, twenty-one".