52657205242 has 32 divisors (see below), whose sum is σ = 82620291600. Its totient is φ = 25137788928.

The previous prime is 52657205231. The next prime is 52657205291. The reversal of 52657205242 is 24250275625.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 31747756041 + 20909449201 = 178179^2 + 144601^2 .

It is a super-2 number, since 2×52657205242² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52657205195 and 52657205204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8396484 + ... + 8402752.

Almost surely, 2^52657205242 is an apocalyptic number.

52657205242 is a deficient number, since it is larger than the sum of its proper divisors (29963086358).

52657205242 is a wasteful number, since it uses less digits than its factorization.

52657205242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890.

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 52657205242 in words is "fifty-two billion, six hundred fifty-seven million, two hundred five thousand, two hundred forty-two".