52011400 has 96 divisors (see below), whose sum is σ = 139991040. Its totient is φ = 17602560.

The previous prime is 52011389. The next prime is 52011409. The reversal of 52011400 is 411025.

It is not an unprimeable number, because it can be changed into a prime (52011409) 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, 135609 + ... + 135991.

It is an arithmetic number, because the mean of its divisors is an integer number (1458240).

Almost surely, 2^52011400 is an apocalyptic number.

52011400 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 52011400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69995520).

52011400 is an abundant number, since it is smaller than the sum of its proper divisors (87979640).

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

52011400 is a wasteful number, since it uses less digits than its factorization.

52011400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 52011400 is about 7211.8929553897. The cubic root of 52011400 is about 373.2783897318.

Adding to 52011400 its reverse (411025), we get a palindrome (52422425).

The spelling of 52011400 in words is "fifty-two million, eleven thousand, four hundred".