52543404 has 84 divisors (see below), whose sum is σ = 141880144. Its totient is φ = 17006112.

The previous prime is 52543373. The next prime is 52543409. The reversal of 52543404 is 40434525.

52543404 is a `hidden beast` number, since 5 + 254 + 3 + 404 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (52543409) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 107649 + ... + 108135.

Almost surely, 2^52543404 is an apocalyptic number.

52543404 is a gapful number since it is divisible by the number (54) 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 52543404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70940072).

52543404 is an abundant number, since it is smaller than the sum of its proper divisors (89336740).

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

52543404 is a wasteful number, since it uses less digits than its factorization.

52543404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 52543404 is about 7248.6829148474. The cubic root of 52543404 is about 374.5467804661.

Adding to 52543404 its reverse (40434525), we get a palindrome (92977929).

The spelling of 52543404 in words is "fifty-two million, five hundred forty-three thousand, four hundred four".