2002504821 has 16 divisors (see below), whose sum is σ = 2854051200. Its totient is φ = 1245812480.

The previous prime is 2002504813. The next prime is 2002504831. The reversal of 2002504821 is 1284052002.

It is not a de Polignac number, because 2002504821 - 2³ = 2002504813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002504791 and 2002504800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002504811) 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, 351096 + ... + 356753.

It is an arithmetic number, because the mean of its divisors is an integer number (178378200).

Almost surely, 2^2002504821 is an apocalyptic number.

It is an amenable number.

2002504821 is a deficient number, since it is larger than the sum of its proper divisors (851546379).

2002504821 is a wasteful number, since it uses less digits than its factorization.

2002504821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707916.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 2002504821 is about 44749.3555372589. The cubic root of 2002504821 is about 1260.4468099175.

Adding to 2002504821 its reverse (1284052002), we get a palindrome (3286556823).

The spelling of 2002504821 in words is "two billion, two million, five hundred four thousand, eight hundred twenty-one".