211510054225 has 12 divisors (see below), whose sum is σ = 270732870400. Its totient is φ = 163749718800.

The previous prime is 211510054201. The next prime is 211510054229. The reversal of 211510054225 is 522450015112.

It is not a de Polignac number, because 211510054225 - 2⁷ = 211510054097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211510054193 and 211510054202.

It is not an unprimeable number, because it can be changed into a prime (211510054229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136457325 + ... + 136458874.

Almost surely, 2^211510054225 is an apocalyptic number.

211510054225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211510054225 is a deficient number, since it is larger than the sum of its proper divisors (59222816175).

211510054225 is a wasteful number, since it uses less digits than its factorization.

211510054225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272916240 (or 272916235 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 211510054225 its reverse (522450015112), we get a palindrome (733960069337).

The spelling of 211510054225 in words is "two hundred eleven billion, five hundred ten million, fifty-four thousand, two hundred twenty-five".