537221100 has 144 divisors (see below), whose sum is σ = 1687669760. Its totient is φ = 131155200.

The previous prime is 537221099. The next prime is 537221107. The reversal of 537221100 is 1122735.

It is not an unprimeable number, because it can be changed into a prime (537221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 541605 + ... + 542595.

Almost surely, 2^537221100 is an apocalyptic number.

537221100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843834880).

537221100 is an abundant number, since it is smaller than the sum of its proper divisors (1150448660).

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

537221100 is a wasteful number, since it uses less digits than its factorization.

537221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 537221100 is about 23178.0305461875. The cubic root of 537221100 is about 812.9260124902.

Adding to 537221100 its reverse (1122735), we get a palindrome (538343835).

The spelling of 537221100 in words is "five hundred thirty-seven million, two hundred twenty-one thousand, one hundred".