252020004 has 12 divisors (see below), whose sum is σ = 588046704. Its totient is φ = 84006664.

The previous prime is 252019997. The next prime is 252020029. The reversal of 252020004 is 400020252.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10500822 + ... + 10500845.

It is an arithmetic number, because the mean of its divisors is an integer number (49003892).

Almost surely, 2^252020004 is an apocalyptic number.

It is an amenable number.

252020004 is an abundant number, since it is smaller than the sum of its proper divisors (336026700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252020004 is a wasteful number, since it uses less digits than its factorization.

252020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21001674 (or 21001672 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 252020004 is about 15875.1379206607. The cubic root of 252020004 is about 631.6526726114.

Adding to 252020004 its reverse (400020252), we get a palindrome (652040256).

The spelling of 252020004 in words is "two hundred fifty-two million, twenty thousand, four".