211053500424 has 64 divisors (see below), whose sum is σ = 631356633600. Its totient is φ = 64939537728.

The previous prime is 211053500347. The next prime is 211053500443. The reversal of 211053500424 is 424005350112.

211053500424 is a `hidden beast` number, since 2 + 110 + 5 + 3 + 500 + 42 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37577944 + ... + 37583559.

It is an arithmetic number, because the mean of its divisors is an integer number (9864947400).

Almost surely, 2^211053500424 is an apocalyptic number.

211053500424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211053500424 is an abundant number, since it is smaller than the sum of its proper divisors (420303133176).

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

211053500424 is a wasteful number, since it uses less digits than its factorization.

211053500424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75161531 (or 75161521 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 211053500424 its reverse (424005350112), we get a palindrome (635058850536).

The spelling of 211053500424 in words is "two hundred eleven billion, fifty-three million, five hundred thousand, four hundred twenty-four".