52124205242 has 4 divisors (see below), whose sum is σ = 78186307866. Its totient is φ = 26062102620.

The previous prime is 52124205241. The next prime is 52124205283. The reversal of 52124205242 is 24250242125.

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., 50633550361 + 1490654881 = 225019^2 + 38609^2 .

It is a super-2 number, since 2×52124205242² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52124205241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13031051309 + ... + 13031051312.

Almost surely, 2^52124205242 is an apocalyptic number.

52124205242 is a deficient number, since it is larger than the sum of its proper divisors (26062102624).

52124205242 is a wasteful number, since it uses less digits than its factorization.

52124205242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26062102623.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 52124205242 its reverse (24250242125), we get a palindrome (76374447367).

The spelling of 52124205242 in words is "fifty-two billion, one hundred twenty-four million, two hundred five thousand, two hundred forty-two".