52170543666562 has 4 divisors (see below), whose sum is σ = 78255815499846. Its totient is φ = 26085271833280.

The previous prime is 52170543666559. The next prime is 52170543666613. The reversal of 52170543666562 is 26566634507125.

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., 48367142713201 + 3803400953361 = 6954649^2 + 1950231^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 52170543666497 and 52170543666506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13042635916639 + ... + 13042635916642.

Almost surely, 2^{52170543666562} is an apocalyptic number.

52170543666562 is a deficient number, since it is larger than the sum of its proper divisors (26085271833284).

52170543666562 is a wasteful number, since it uses less digits than its factorization.

52170543666562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26085271833283.

The product of its (nonzero) digits is 54432000, while the sum is 58.

The spelling of 52170543666562 in words is "fifty-two trillion, one hundred seventy billion, five hundred forty-three million, six hundred sixty-six thousand, five hundred sixty-two".