200427521 has 4 divisors (see below), whose sum is σ = 229060032. Its totient is φ = 171795012.

The previous prime is 200427509. The next prime is 200427541. The reversal of 200427521 is 125724002.

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 not a de Polignac number, because 200427521 - 2¹⁸ = 200165377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200427541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14316245 + ... + 14316258.

It is an arithmetic number, because the mean of its divisors is an integer number (57265008).

Almost surely, 2^200427521 is an apocalyptic number.

It is an amenable number.

200427521 is a deficient number, since it is larger than the sum of its proper divisors (28632511).

200427521 is an equidigital number, since it uses as much as digits as its factorization.

200427521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28632510.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 200427521 is about 14157.2427047077. The cubic root of 200427521 is about 585.2199440821.

The spelling of 200427521 in words is "two hundred million, four hundred twenty-seven thousand, five hundred twenty-one".