52442152402 has 4 divisors (see below), whose sum is σ = 78663228606. Its totient is φ = 26221076200.

The previous prime is 52442152393. The next prime is 52442152423. The reversal of 52442152402 is 20425124425.

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., 34243872601 + 18198279801 = 185051^2 + 134901^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13110538099 + ... + 13110538102.

Almost surely, 2^52442152402 is an apocalyptic number.

52442152402 is a deficient number, since it is larger than the sum of its proper divisors (26221076204).

52442152402 is a wasteful number, since it uses less digits than its factorization.

52442152402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26221076203.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 52442152402 its reverse (20425124425), we get a palindrome (72867276827).

The spelling of 52442152402 in words is "fifty-two billion, four hundred forty-two million, one hundred fifty-two thousand, four hundred two".