200424251 has 4 divisors (see below), whose sum is σ = 200513952. Its totient is φ = 200334552.

The previous prime is 200424241. The next prime is 200424353. The reversal of 200424251 is 152424002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200424251 - 2¹⁰ = 200423227 is a prime.

It is a super-2 number, since 2×200424251² = 80339760777822002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200424241) 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, 41411 + ... + 45996.

It is an arithmetic number, because the mean of its divisors is an integer number (50128488).

Almost surely, 2^200424251 is an apocalyptic number.

200424251 is a deficient number, since it is larger than the sum of its proper divisors (89701).

200424251 is an equidigital number, since it uses as much as digits as its factorization.

200424251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89700.

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

The square root of 200424251 is about 14157.1272156465. The cubic root of 200424251 is about 585.2167614194.

Adding to 200424251 its reverse (152424002), we get a palindrome (352848253).

The spelling of 200424251 in words is "two hundred million, four hundred twenty-four thousand, two hundred fifty-one".