528460249 has 4 divisors (see below), whose sum is σ = 559546164. Its totient is φ = 497374336.

The previous prime is 528460241. The next prime is 528460279. The reversal of 528460249 is 942064825.

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 429318400 + 99141849 = 20720^2 + 9957^2 .

It is a cyclic number.

It is not a de Polignac number, because 528460249 - 2³ = 528460241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528460241) 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, 15542932 + ... + 15542965.

It is an arithmetic number, because the mean of its divisors is an integer number (139886541).

Almost surely, 2^528460249 is an apocalyptic number.

It is an amenable number.

528460249 is a deficient number, since it is larger than the sum of its proper divisors (31085915).

528460249 is a wasteful number, since it uses less digits than its factorization.

528460249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31085914.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 528460249 is about 22988.2632880346. The cubic root of 528460249 is about 808.4827814606.

The spelling of 528460249 in words is "five hundred twenty-eight million, four hundred sixty thousand, two hundred forty-nine".