52143400 has 24 divisors (see below), whose sum is σ = 121233870. Its totient is φ = 20857280.

The previous prime is 52143383. The next prime is 52143401. The reversal of 52143400 is 434125.

It can be written as a sum of positive squares in 3 ways, for example, as 30669444 + 21473956 = 5538^2 + 4634^2 .

It is not an unprimeable number, because it can be changed into a prime (52143401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130159 + ... + 130558.

Almost surely, 2^52143400 is an apocalyptic number.

52143400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52143400 is an abundant number, since it is smaller than the sum of its proper divisors (69090470).

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

52143400 is a wasteful number, since it uses less digits than its factorization.

52143400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260733 (or 260724 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 52143400 is about 7221.0387064466. The cubic root of 52143400 is about 373.5939046825.

Adding to 52143400 its reverse (434125), we get a palindrome (52577525).

The spelling of 52143400 in words is "fifty-two million, one hundred forty-three thousand, four hundred".