52051212142 has 4 divisors (see below), whose sum is σ = 78076818216. Its totient is φ = 26025606070.

The previous prime is 52051212133. The next prime is 52051212149. The reversal of 52051212142 is 24121215025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52051212149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13012803034 + ... + 13012803037.

It is an arithmetic number, because the mean of its divisors is an integer number (19519204554).

Almost surely, 2^52051212142 is an apocalyptic number.

52051212142 is a deficient number, since it is larger than the sum of its proper divisors (26025606074).

52051212142 is a wasteful number, since it uses less digits than its factorization.

52051212142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26025606073.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 52051212142 its reverse (24121215025), we get a palindrome (76172427167).

The spelling of 52051212142 in words is "fifty-two billion, fifty-one million, two hundred twelve thousand, one hundred forty-two".