201945825 has 24 divisors (see below), whose sum is σ = 370983200. Its totient is φ = 107704080.

The previous prime is 201945823. The next prime is 201945829. The reversal of 201945825 is 528549102.

It is not a de Polignac number, because 201945825 - 2¹ = 201945823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201945825.

It is not an unprimeable number, because it can be changed into a prime (201945823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148915 + ... + 150264.

Almost surely, 2^201945825 is an apocalyptic number.

201945825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201945825 is a deficient number, since it is larger than the sum of its proper divisors (169037375).

201945825 is a wasteful number, since it uses less digits than its factorization.

201945825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299198 (or 299187 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 201945825 is about 14210.7644059002. The cubic root of 201945825 is about 586.6939723789.

The spelling of 201945825 in words is "two hundred one million, nine hundred forty-five thousand, eight hundred twenty-five".