52005404 has 24 divisors (see below), whose sum is σ = 101595648. Its totient is φ = 23088240.

The previous prime is 52005389. The next prime is 52005409. The reversal of 52005404 is 40450025.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52005409) 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, 11852 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (4233152).

Almost surely, 2^52005404 is an apocalyptic number.

It is an amenable number.

52005404 is a deficient number, since it is larger than the sum of its proper divisors (49590244).

52005404 is a wasteful number, since it uses less digits than its factorization.

52005404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27545 (or 27543 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52005404 is about 7211.4772411760. The cubic root of 52005404 is about 373.2640450353.

Adding to 52005404 its reverse (40450025), we get a palindrome (92455429).

The spelling of 52005404 in words is "fifty-two million, five thousand, four hundred four".