53213200 has 30 divisors (see below), whose sum is σ = 127845674. Its totient is φ = 21285120.

The previous prime is 53213183. The next prime is 53213207. The reversal of 53213200 is 231235.

It can be written as a sum of positive squares in 3 ways, for example, as 389376 + 52823824 = 624^2 + 7268^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (53213207) 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, 66117 + ... + 66916.

Almost surely, 2^53213200 is an apocalyptic number.

53213200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53213200 is an abundant number, since it is smaller than the sum of its proper divisors (74632474).

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

53213200 is a wasteful number, since it uses less digits than its factorization.

53213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133051 (or 133040 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 53213200 is about 7294.7378294220. The cubic root of 53213200 is about 376.1315745952.

Adding to 53213200 its reverse (231235), we get a palindrome (53444435).

The spelling of 53213200 in words is "fifty-three million, two hundred thirteen thousand, two hundred".