509208452 has 12 divisors (see below), whose sum is σ = 894940956. Its totient is φ = 253511040.

The previous prime is 509208439. The next prime is 509208457. The reversal of 509208452 is 254802905.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 273770116 + 235438336 = 16546^2 + 15344^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (509208457) 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, 272249 + ... + 274112.

It is an arithmetic number, because the mean of its divisors is an integer number (74578413).

Almost surely, 2^509208452 is an apocalyptic number.

It is an amenable number.

509208452 is a deficient number, since it is larger than the sum of its proper divisors (385732504).

509208452 is a wasteful number, since it uses less digits than its factorization.

509208452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546598 (or 546596 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 509208452 is about 22565.6476086994. The cubic root of 509208452 is about 798.5434183218.

The spelling of 509208452 in words is "five hundred nine million, two hundred eight thousand, four hundred fifty-two".