52021234042 has 4 divisors (see below), whose sum is σ = 78031851066. Its totient is φ = 26010617020.

The previous prime is 52021234037. The next prime is 52021234079. The reversal of 52021234042 is 24043212025.

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., 39434413561 + 12586820481 = 198581^2 + 112191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52021233998 and 52021234016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13005308509 + ... + 13005308512.

Almost surely, 2^52021234042 is an apocalyptic number.

52021234042 is a deficient number, since it is larger than the sum of its proper divisors (26010617024).

52021234042 is a wasteful number, since it uses less digits than its factorization.

52021234042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26010617023.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 52021234042 its reverse (24043212025), we get a palindrome (76064446067).

The spelling of 52021234042 in words is "fifty-two billion, twenty-one million, two hundred thirty-four thousand, forty-two".