39953576053537 has 2 divisors, whose sum is σ = 39953576053538. Its totient is φ = 39953576053536.

The previous prime is 39953576053477. The next prime is 39953576053571. The reversal of 39953576053537 is 73535067535993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22696829846161 + 17256746207376 = 4764119^2 + 4154124^2 .

It is a cyclic number.

It is not a de Polignac number, because 39953576053537 - 2⁷ = 39953576053409 is a prime.

It is not a weakly prime, because it can be changed into another prime (39953576051537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19976788026768 + 19976788026769.

It is an arithmetic number, because the mean of its divisors is an integer number (19976788026769).

Almost surely, 2^{39953576053537} is an apocalyptic number.

It is an amenable number.

39953576053537 is a deficient number, since it is larger than the sum of its proper divisors (1).

39953576053537 is an equidigital number, since it uses as much as digits as its factorization.

39953576053537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1205583750, while the sum is 70.

The spelling of 39953576053537 in words is "thirty-nine trillion, nine hundred fifty-three billion, five hundred seventy-six million, fifty-three thousand, five hundred thirty-seven".