33505385057 has 4 divisors (see below), whose sum is σ = 33611080596. Its totient is φ = 33399689520.

The previous prime is 33505385047. The next prime is 33505385059. The reversal of 33505385057 is 75058350533.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75058350533 = 5189 ⋅14464897.

It can be written as a sum of positive squares in 2 ways, for example, as 525372241 + 32980012816 = 22921^2 + 181604^2 .

It is a cyclic number.

It is not a de Polignac number, because 33505385057 - 2⁴ = 33505385041 is a prime.

It is a super-2 number, since 2×33505385057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33505384999 and 33505385017.

It is not an unprimeable number, because it can be changed into a prime (33505385059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52847294 + ... + 52847927.

It is an arithmetic number, because the mean of its divisors is an integer number (8402770149).

Almost surely, 2^33505385057 is an apocalyptic number.

It is an amenable number.

33505385057 is a deficient number, since it is larger than the sum of its proper divisors (105695539).

33505385057 is a wasteful number, since it uses less digits than its factorization.

33505385057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105695538.

The product of its (nonzero) digits is 945000, while the sum is 44.

The spelling of 33505385057 in words is "thirty-three billion, five hundred five million, three hundred eighty-five thousand, fifty-seven".