205252500 has 60 divisors (see below), whose sum is σ = 598483424. Its totient is φ = 54732000.

The previous prime is 205252499. The next prime is 205252501. The reversal of 205252500 is 5252502.

It is an interprime number because it is at equal distance from previous prime (205252499) and next prime (205252501).

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205252501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6184 + ... + 21183.

Almost surely, 2^205252500 is an apocalyptic number.

205252500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205252500 is an abundant number, since it is smaller than the sum of its proper divisors (393230924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205252500 is a wasteful number, since it uses less digits than its factorization.

205252500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27394 (or 27377 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 205252500 is about 14326.6360322303. The cubic root of 205252500 is about 589.8788413475.

The spelling of 205252500 in words is "two hundred five million, two hundred fifty-two thousand, five hundred".