211054034550 has 24 divisors (see below), whose sum is σ = 523414006056. Its totient is φ = 56281075840.

The previous prime is 211054034507. The next prime is 211054034561. The reversal of 211054034550 is 55430450112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703513299 + ... + 703513598.

It is an arithmetic number, because the mean of its divisors is an integer number (21808916919).

Almost surely, 2^211054034550 is an apocalyptic number.

211054034550 is an abundant number, since it is smaller than the sum of its proper divisors (312359971506).

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

211054034550 is a wasteful number, since it uses less digits than its factorization.

211054034550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407026912 (or 1407026907 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 211054034550 its reverse (55430450112), we get a palindrome (266484484662).

The spelling of 211054034550 in words is "two hundred eleven billion, fifty-four million, thirty-four thousand, five hundred fifty".