52450400 has 36 divisors (see below), whose sum is σ = 128046492. Its totient is φ = 20979840.

The previous prime is 52450379. The next prime is 52450417. The reversal of 52450400 is 405425.

It is a happy number.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31982 + ... + 33581.

It is an arithmetic number, because the mean of its divisors is an integer number (3556847).

Almost surely, 2^52450400 is an apocalyptic number.

52450400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52450400 is an abundant number, since it is smaller than the sum of its proper divisors (75596092).

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

52450400 is a wasteful number, since it uses less digits than its factorization.

52450400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65583 (or 65570 counting only the distinct ones).

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

The square root of 52450400 is about 7242.2648391232. The cubic root of 52450400 is about 374.3256621836.

Adding to 52450400 its reverse (405425), we get a palindrome (52855825).

The spelling of 52450400 in words is "fifty-two million, four hundred fifty thousand, four hundred".