211061132507025 has 18 divisors (see below), whose sum is σ = 378033939557430. Its totient is φ = 112565937336960.

The previous prime is 211061132507009. The next prime is 211061132507129. The reversal of 211061132507025 is 520705231160112.

211061132507025 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 611 + 32 + 5 + 0 + 7 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 808116496209 + 210253016010816 = 898953^2 + 14500104^2 .

It is not a de Polignac number, because 211061132507025 - 2⁴ = 211061132507009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 469024738680 + ... + 469024739129.

Almost surely, 2^{211061132507025} is an apocalyptic number.

211061132507025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211061132507025 is a deficient number, since it is larger than the sum of its proper divisors (166972807050405).

211061132507025 is a wasteful number, since it uses less digits than its factorization.

211061132507025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938049477825 (or 938049477817 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

Adding to 211061132507025 its reverse (520705231160112), we get a palindrome (731766363667137).

The spelling of 211061132507025 in words is "two hundred eleven trillion, sixty-one billion, one hundred thirty-two million, five hundred seven thousand, twenty-five".