52004402 has 4 divisors (see below), whose sum is σ = 78006606. Its totient is φ = 26002200.

The previous prime is 52004399. The next prime is 52004413. The reversal of 52004402 is 20440025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50537881 + 1466521 = 7109^2 + 1211^2 .

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 as a sum of consecutive naturals, namely, 13001099 + ... + 13001102.

Almost surely, 2^52004402 is an apocalyptic number.

52004402 is a deficient number, since it is larger than the sum of its proper divisors (26002204).

52004402 is a wasteful number, since it uses less digits than its factorization.

52004402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26002203.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 52004402 is about 7211.4077682516. The cubic root of 52004402 is about 373.2616477654.

Adding to 52004402 its reverse (20440025), we get a palindrome (72444427).

The spelling of 52004402 in words is "fifty-two million, four thousand, four hundred two".