509827253 has 4 divisors (see below), whose sum is σ = 549044748. Its totient is φ = 470609760.

The previous prime is 509827249. The next prime is 509827261. The reversal of 509827253 is 352728905.

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 112741924 + 397085329 = 10618^2 + 19927^2 .

It is a cyclic number.

It is not a de Polignac number, because 509827253 - 2² = 509827249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 509827253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509820253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19608728 + ... + 19608753.

It is an arithmetic number, because the mean of its divisors is an integer number (137261187).

Almost surely, 2^509827253 is an apocalyptic number.

It is an amenable number.

509827253 is a deficient number, since it is larger than the sum of its proper divisors (39217495).

509827253 is a wasteful number, since it uses less digits than its factorization.

509827253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39217494.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 509827253 is about 22579.3545744780. The cubic root of 509827253 is about 798.8667563942.

The spelling of 509827253 in words is "five hundred nine million, eight hundred twenty-seven thousand, two hundred fifty-three".