211625250256 has 40 divisors (see below), whose sum is σ = 483714865664. Its totient is φ = 87770839680.

The previous prime is 211625250241. The next prime is 211625250259. The reversal of 211625250256 is 652052526112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211625250259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30472515 + ... + 30479458.

Almost surely, 2^211625250256 is an apocalyptic number.

It is an amenable number.

211625250256 is an abundant number, since it is smaller than the sum of its proper divisors (272089615408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211625250256 is a wasteful number, since it uses less digits than its factorization.

211625250256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60952019 (or 60952013 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 211625250256 its reverse (652052526112), we get a palindrome (863677776368).

The spelling of 211625250256 in words is "two hundred eleven billion, six hundred twenty-five million, two hundred fifty thousand, two hundred fifty-six".