211304541025 has 6 divisors (see below), whose sum is σ = 262017630902. Its totient is φ = 169043632800.

The previous prime is 211304541001. The next prime is 211304541031. The reversal of 211304541025 is 520145403112.

It can be written as a sum of positive squares in 3 ways, for example, as 41936077089 + 169368463936 = 204783^2 + 411544^2 .

It is not a de Polignac number, because 211304541025 - 2¹⁵ = 211304508257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211304540984 and 211304541002.

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, 4226090796 + ... + 4226090845.

Almost surely, 2^211304541025 is an apocalyptic number.

211304541025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211304541025 is a deficient number, since it is larger than the sum of its proper divisors (50713089877).

211304541025 is an equidigital number, since it uses as much as digits as its factorization.

211304541025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8452181651 (or 8452181646 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 211304541025 its reverse (520145403112), we get a palindrome (731449944137).

The spelling of 211304541025 in words is "two hundred eleven billion, three hundred four million, five hundred forty-one thousand, twenty-five".