200991925 has 6 divisors (see below), whose sum is σ = 249230018. Its totient is φ = 160793520.

The previous prime is 200991913. The next prime is 200991949. The reversal of 200991925 is 529199002.

It can be written as a sum of positive squares in 3 ways, for example, as 14915044 + 186076881 = 3862^2 + 13641^2 .

It is not a de Polignac number, because 200991925 - 2⁷ = 200991797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4019814 + ... + 4019863.

Almost surely, 2^200991925 is an apocalyptic number.

200991925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

200991925 is a deficient number, since it is larger than the sum of its proper divisors (48238093).

200991925 is an equidigital number, since it uses as much as digits as its factorization.

200991925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039687 (or 8039682 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 200991925 is about 14177.1620926051. The cubic root of 200991925 is about 585.7687558050.

The spelling of 200991925 in words is "two hundred million, nine hundred ninety-one thousand, nine hundred twenty-five".