210523326545506 has 12 divisors (see below), whose sum is σ = 341944693117362. Its totient is φ = 97164612251616.

The previous prime is 210523326545459. The next prime is 210523326545551. The reversal of 210523326545506 is 605545623325012.

It is a happy number.

210523326545506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 117140770739281 + 93382555806225 = 10823159^2 + 9663465^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210523326545506.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311425038931 + ... + 311425039606.

Almost surely, 2^{210523326545506} is an apocalyptic number.

210523326545506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

210523326545506 is a deficient number, since it is larger than the sum of its proper divisors (131421366571856).

210523326545506 is a wasteful number, since it uses less digits than its factorization.

210523326545506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622850078565 (or 622850078552 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 210523326545506 in words is "two hundred ten trillion, five hundred twenty-three billion, three hundred twenty-six million, five hundred forty-five thousand, five hundred six".