501253205 has 4 divisors (see below), whose sum is σ = 601503852. Its totient is φ = 401002560.

The previous prime is 501253189. The next prime is 501253213. The reversal of 501253205 is 502352105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 377019889 + 124233316 = 19417^2 + 11146^2 .

It is not a de Polignac number, because 501253205 - 2⁴ = 501253189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50125316 + ... + 50125325.

It is an arithmetic number, because the mean of its divisors is an integer number (150375963).

Almost surely, 2^501253205 is an apocalyptic number.

It is an amenable number.

501253205 is a deficient number, since it is larger than the sum of its proper divisors (100250647).

501253205 is a wasteful number, since it uses less digits than its factorization.

501253205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100250646.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 501253205 is about 22388.6847536875. The cubic root of 501253205 is about 794.3630857217.

The spelling of 501253205 in words is "five hundred one million, two hundred fifty-three thousand, two hundred five".