52042353140402 has 4 divisors (see below), whose sum is σ = 78063529710606. Its totient is φ = 26021176570200.

The previous prime is 52042353140383. The next prime is 52042353140443. The reversal of 52042353140402 is 20404135324025.

It is a happy number.

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., 50343863906281 + 1698489234121 = 7095341^2 + 1303261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13010588285099 + ... + 13010588285102.

Almost surely, 2^{52042353140402} is an apocalyptic number.

52042353140402 is a deficient number, since it is larger than the sum of its proper divisors (26021176570204).

52042353140402 is a wasteful number, since it uses less digits than its factorization.

52042353140402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26021176570203.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 52042353140402 its reverse (20404135324025), we get a palindrome (72446488464427).

The spelling of 52042353140402 in words is "fifty-two trillion, forty-two billion, three hundred fifty-three million, one hundred forty thousand, four hundred two".