200404025 has 12 divisors (see below), whose sum is σ = 255218412. Its totient is φ = 155989440.

The previous prime is 200404019. The next prime is 200404027. The reversal of 200404025 is 520404002.

It can be written as a sum of positive squares in 6 ways, for example, as 17397241 + 183006784 = 4171^2 + 13528^2 .

It is not a de Polignac number, because 200404025 - 2¹⁴ = 200387641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200403994 and 200404012.

It is not an unprimeable number, because it can be changed into a prime (200404027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107402 + ... + 109251.

It is an arithmetic number, because the mean of its divisors is an integer number (21268201).

Almost surely, 2^200404025 is an apocalyptic number.

200404025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

200404025 is a deficient number, since it is larger than the sum of its proper divisors (54814387).

200404025 is a wasteful number, since it uses less digits than its factorization.

200404025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216700 (or 216695 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 200404025 is about 14156.4128577829. The cubic root of 200404025 is about 585.1970748589.

Adding to 200404025 its reverse (520404002), we get a palindrome (720808027).

The spelling of 200404025 in words is "two hundred million, four hundred four thousand, twenty-five".