201250025 has 6 divisors (see below), whose sum is σ = 249550062. Its totient is φ = 161000000.

The previous prime is 201250013. The next prime is 201250039. The reversal of 201250025 is 520052102.

It can be written as a sum of positive squares in 3 ways, for example, as 2637376 + 198612649 = 1624^2 + 14093^2 .

It is not a de Polignac number, because 201250025 - 2²⁴ = 184472809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201249985 and 201250012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4024976 + ... + 4025025.

It is an arithmetic number, because the mean of its divisors is an integer number (41591677).

Almost surely, 2^201250025 is an apocalyptic number.

201250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201250025 is a deficient number, since it is larger than the sum of its proper divisors (48300037).

201250025 is an equidigital number, since it uses as much as digits as its factorization.

201250025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050011 (or 8050006 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 201250025 is about 14186.2618402453. The cubic root of 201250025 is about 586.0193831995.

The spelling of 201250025 in words is "two hundred one million, two hundred fifty thousand, twenty-five".