200524421 has 4 divisors (see below), whose sum is σ = 203923200. Its totient is φ = 197125644.

The previous prime is 200524391. The next prime is 200524433. The reversal of 200524421 is 124425002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200524421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200524393 and 200524402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200524021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699301 + ... + 1699418.

It is an arithmetic number, because the mean of its divisors is an integer number (50980800).

Almost surely, 2^200524421 is an apocalyptic number.

It is an amenable number.

200524421 is a deficient number, since it is larger than the sum of its proper divisors (3398779).

200524421 is an equidigital number, since it uses as much as digits as its factorization.

200524421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398778.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 200524421 is about 14160.6645677383. The cubic root of 200524421 is about 585.3142403078.

Adding to 200524421 its reverse (124425002), we get a palindrome (324949423).

The spelling of 200524421 in words is "two hundred million, five hundred twenty-four thousand, four hundred twenty-one".