200550431 has 2 divisors, whose sum is σ = 200550432. Its totient is φ = 200550430.

The previous prime is 200550391. The next prime is 200550437. The reversal of 200550431 is 134055002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200550431 - 2¹⁰ = 200549407 is a prime.

It is a super-2 number, since 2×200550431² = 80440950748571522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200550437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100275215 + 100275216.

It is an arithmetic number, because the mean of its divisors is an integer number (100275216).

Almost surely, 2^200550431 is an apocalyptic number.

200550431 is a deficient number, since it is larger than the sum of its proper divisors (1).

200550431 is an equidigital number, since it uses as much as digits as its factorization.

200550431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 200550431 is about 14161.5829270601. The cubic root of 200550431 is about 585.3395462284.

The spelling of 200550431 in words is "two hundred million, five hundred fifty thousand, four hundred thirty-one".