211477292825 has 6 divisors (see below), whose sum is σ = 262231843134. Its totient is φ = 169181834240.

The previous prime is 211477292813. The next prime is 211477292849. The reversal of 211477292825 is 528292774112.

It is a happy number.

211477292825 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 24297327376 + 187179965449 = 155876^2 + 432643^2 .

It is not a de Polignac number, because 211477292825 - 2⁴ = 211477292809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4229545832 + ... + 4229545881.

It is an arithmetic number, because the mean of its divisors is an integer number (43705307189).

Almost surely, 2^211477292825 is an apocalyptic number.

211477292825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211477292825 is a deficient number, since it is larger than the sum of its proper divisors (50754550309).

211477292825 is an equidigital number, since it uses as much as digits as its factorization.

211477292825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8459091723 (or 8459091718 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The spelling of 211477292825 in words is "two hundred eleven billion, four hundred seventy-seven million, two hundred ninety-two thousand, eight hundred twenty-five".