52540400 has 60 divisors (see below), whose sum is σ = 137715144. Its totient is φ = 19104000.

The previous prime is 52540399. The next prime is 52540417. The reversal of 52540400 is 404525.

It is a happy number.

52540400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1571 + ... + 10370.

Almost surely, 2^52540400 is an apocalyptic number.

52540400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52540400 is an abundant number, since it is smaller than the sum of its proper divisors (85174744).

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

52540400 is a wasteful number, since it uses less digits than its factorization.

52540400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11970 (or 11959 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52540400 is about 7248.4757018286. The cubic root of 52540400 is about 374.5396424946.

Adding to 52540400 its reverse (404525), we get a palindrome (52944925).

The spelling of 52540400 in words is "fifty-two million, five hundred forty thousand, four hundred".