70205256533 has 4 divisors (see below), whose sum is σ = 70209035328. Its totient is φ = 70201477740.

The previous prime is 70205256497. The next prime is 70205256581. The reversal of 70205256533 is 33565250207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70205256533 - 2¹⁰ = 70205255509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70205256733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861391 + ... + 1898732.

It is an arithmetic number, because the mean of its divisors is an integer number (17552258832).

Almost surely, 2^70205256533 is an apocalyptic number.

It is an amenable number.

70205256533 is a deficient number, since it is larger than the sum of its proper divisors (3778795).

70205256533 is a wasteful number, since it uses less digits than its factorization.

70205256533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778794.

The product of its (nonzero) digits is 189000, while the sum is 38.

The spelling of 70205256533 in words is "seventy billion, two hundred five million, two hundred fifty-six thousand, five hundred thirty-three".