210555405652231 has 4 divisors (see below), whose sum is σ = 210555700662672. Its totient is φ = 210555110641792.

The previous prime is 210555405652211. The next prime is 210555405652309. The reversal of 210555405652231 is 132256504555012.

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 210555405652231 - 2⁵ = 210555405652199 is a prime.

It is a super-2 number, since 2×210555405652231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210555405652211) 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, 146432035 + ... + 147862948.

It is an arithmetic number, because the mean of its divisors is an integer number (52638925165668).

Almost surely, 2^{210555405652231} is an apocalyptic number.

210555405652231 is a deficient number, since it is larger than the sum of its proper divisors (295010441).

210555405652231 is an equidigital number, since it uses as much as digits as its factorization.

210555405652231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295010440.

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 210555405652231 in words is "two hundred ten trillion, five hundred fifty-five billion, four hundred five million, six hundred fifty-two thousand, two hundred thirty-one".