52211500 has 72 divisors (see below), whose sum is σ = 125483904. Its totient is φ = 18964000.

The previous prime is 52211473. The next prime is 52211507. The reversal of 52211500 is 511225.

It is not an unprimeable number, because it can be changed into a prime (52211507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60069 + ... + 60931.

It is an arithmetic number, because the mean of its divisors is an integer number (1742832).

Almost surely, 2^52211500 is an apocalyptic number.

52211500 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 52211500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62741952).

52211500 is an abundant number, since it is smaller than the sum of its proper divisors (73272404).

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

52211500 is a wasteful number, since it uses less digits than its factorization.

52211500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 52211500 is about 7225.7525559626. The cubic root of 52211500 is about 373.7564735291.

Adding to 52211500 its reverse (511225), we get a palindrome (52722725).

The spelling of 52211500 in words is "fifty-two million, two hundred eleven thousand, five hundred".