213526555703 has 4 divisors (see below), whose sum is σ = 216451577088. Its totient is φ = 210601534320.

The previous prime is 213526555699. The next prime is 213526555717. The reversal of 213526555703 is 307555625312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213526555703 - 2² = 213526555699 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 (213526555783) 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, 1462510583 + ... + 1462510728.

It is an arithmetic number, because the mean of its divisors is an integer number (54112894272).

Almost surely, 2^213526555703 is an apocalyptic number.

213526555703 is a deficient number, since it is larger than the sum of its proper divisors (2925021385).

213526555703 is an equidigital number, since it uses as much as digits as its factorization.

213526555703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925021384.

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

The spelling of 213526555703 in words is "two hundred thirteen billion, five hundred twenty-six million, five hundred fifty-five thousand, seven hundred three".