211313150550 has 72 divisors (see below), whose sum is σ = 567882262584. Its totient is φ = 56334862080.

The previous prime is 211313150539. The next prime is 211313150567. The reversal of 211313150550 is 55051313112.

211313150550 is a `hidden beast` number, since 2 + 1 + 1 + 31 + 31 + 50 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1644949 + ... + 1768751.

It is an arithmetic number, because the mean of its divisors is an integer number (7887253647).

Almost surely, 2^211313150550 is an apocalyptic number.

211313150550 is an abundant number, since it is smaller than the sum of its proper divisors (356569112034).

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

211313150550 is a wasteful number, since it uses less digits than its factorization.

211313150550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127614 (or 127606 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 211313150550 its reverse (55051313112), we get a palindrome (266364463662).

The spelling of 211313150550 in words is "two hundred eleven billion, three hundred thirteen million, one hundred fifty thousand, five hundred fifty".