201952257 has 16 divisors (see below), whose sum is σ = 292649280. Its totient is φ = 123135552.

The previous prime is 201952249. The next prime is 201952277. The reversal of 201952257 is 752259102.

It is a happy number.

It is not a de Polignac number, because 201952257 - 2³ = 201952249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201952217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19503 + ... + 28004.

It is an arithmetic number, because the mean of its divisors is an integer number (18290580).

Almost surely, 2^201952257 is an apocalyptic number.

It is an amenable number.

201952257 is a deficient number, since it is larger than the sum of its proper divisors (90697023).

201952257 is a wasteful number, since it uses less digits than its factorization.

201952257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47632.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 201952257 is about 14210.9907114177. The cubic root of 201952257 is about 586.7002010718.

The spelling of 201952257 in words is "two hundred one million, nine hundred fifty-two thousand, two hundred fifty-seven".