52004020 has 24 divisors (see below), whose sum is σ = 115633224. Its totient is φ = 19577856.

The previous prime is 52003997. The next prime is 52004023. The reversal of 52004020 is 2040025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4145296 + 47858724 = 2036^2 + 6918^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52004023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 76137 + ... + 76816.

It is an arithmetic number, because the mean of its divisors is an integer number (4818051).

Almost surely, 2^52004020 is an apocalyptic number.

It is an amenable number.

52004020 is an abundant number, since it is smaller than the sum of its proper divisors (63629204).

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

52004020 is a wasteful number, since it uses less digits than its factorization.

52004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152979 (or 152977 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 52004020 is about 7211.3812823897. The cubic root of 52004020 is about 373.2607338280.

Adding to 52004020 its reverse (2040025), we get a palindrome (54044045).

The spelling of 52004020 in words is "fifty-two million, four thousand, twenty".